| Name | Gender | Categories | |
|---|
| Nana | f | Hurricanes and Tropical Storms |  |
| Nana | f | Hurricanes and Tropical Storms | |
| Nana Mouskouri | f | Notable Musicians | |
| Nanceen Perry | f | Olympic Medalists | |
| Nancy Ajram | f | Notable Musicians | |
| Nancy Dunkle | f | Olympic Medalists | |
| Nancy Garapick | f | Olympic Medalists | |
| Nancy Hogshead-Makar | f | Olympic Medalists | |
| Nancy Langat | f | Olympic Medalists | |
| Nancy Lieberman | f | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Nancy Mackay | f | Olympic Medalists | |
| Nancy Ramey | f | Olympic Medalists | |
| Nancy Reagan | f | American First Ladies | |
| Nancy Simons | f | Olympic Medalists | |
| Nancy Wheeler | f | Fictional Characters from Television | |
| Nancy Wilson | f | Rock and Roll Hall-of-Famers | |
| Nándor Dáni | m | Olympic Medalists | |
| Nándor Hidegkuti | m | Notable Athletes | |
| Nanette Fabray | f | Emmy Award Winners, Notable Actors and Entertainers | |
| Huang Nanyan | f | Olympic Medalists | |
| Naoclus | m | Characters in Greek Mythology | |
| Naoki Tsukahara | m | Olympic Medalists | |
| Naoko Takahashi | f | Olympic Medalists | |
| Naomi | f | Biblical Characters | |
| Naomi Campbell | f | Notable Actors and Entertainers | |
| Naomi Castle | f | Olympic Medalists | |
| Naomi Klein | f | Notable Activists and Revolutionaries, Notable Writers | |
| Naomi Watts | f | Notable Actors and Entertainers | |
| Naoto Kan | m | Japanese Prime Ministers | |
| Naoto Tajima | m | Olympic Medalists | |
| Naoyuki Shimizu | m | Olympic Medalists | |
| Nap Lajoie | m | Hall-of-Famers, Notable Athletes | |
| Napaeus | m | Characters in Greek Mythology | |
| Nape | f | Characters in Greek Mythology | |
| Naphish | m | Biblical Characters | |
| Naphtali | m | Biblical Characters | |
| Napoleon Bonaparte | m | Frankish and French Kings, Notable Military Figures | |
| Napoleon Dynamite | m | Fictional Characters from Movies | |
| P. V. Narasimha Rao | m | Indian Presidents and Prime Ministers | |
| Narcaeus | m | Characters in Greek Mythology | |
| Narcisa de Jesús Martillo y Morán | f | Saints | |
| Narcissus | m | Saints | |
| Narcissus | m | Characters in Greek Mythology | |
| Narcissus of Athens | m | Biblical Characters, Saints | |
| Narcissus of Jerusalem | m | Saints | |
| Narendra Modi | m | Indian Presidents and Prime Ministers | |
| Narges Mohammadi | f | Nobel Prize Winners | |
| Murakami | m | Japanese Emperors | |
| Konoe | m | Japanese Emperors | |
| Narmacil I | m | Tolkien's Characters | |
| Narmacil II | m | Tolkien's Characters | |
| Narseh | m | Persian and Iranian Kings and Queens | |
| Narzales of Scillium | m | Saints | |
| Lil Nas X | m | Notable Musicians | |
| Nasamon | m | Characters in Greek Mythology | |
| Naser al-Din Shah Qajar | m | Persian and Iranian Kings and Queens | |
| Nasir al-Din al-Tusi | m | Notable Writers | |
| Nasir ud-Din Mahmud | m | Indian Sultans and Emperors | |
| Nasir ud-Din Muhammad Shah | m | Indian Sultans and Emperors | |
| Nasir ud-Din Mahmud Shah Tughluq | m | Indian Sultans and Emperors | |
| Nastes | m | Characters in Greek Mythology | |
| Nat "King" Cole | m | Notable Musicians | |
| Nat Holman | m | Hall-of-Famers | |
| Natalia | f | Saints | |
| Natalia Ginzburg | f | Notable Writers | |
| Natalia Goncharova | f | Olympic Medalists | |
| Natalia Jiménez | f | Notable Musicians | |
| Natalia Kutuzova | f | Olympic Medalists | |
| Natalia Lacunza | f | Notable Musicians | |
| Natalia Oreiro | f | Notable Actors and Entertainers, Notable Musicians | |
| Natalia Tułasiewicz | f | Saints | |
| Natalia Valeeva | f | Olympic Medalists | |
| Natalia Vodopyanova | f | Olympic Medalists | |
| Natalie Golda | f | Olympic Medalists | |
| Natalie Horler | f | Notable Musicians | |
| Natalie Myburgh | f | Olympic Medalists | |
| Natalie Porter | f | Olympic Medalists | |
| Natalie Portman | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Natalie Steward | f | Olympic Medalists | |
| Natalie Williams | f | Olympic Medalists | |
| Natalie "ContraPoints" Wynn | f | Notable Actors and Entertainers | |
| Natalis | m | Saints | |
| Nataliya Burdeyna | f | Olympic Medalists | |
| Nataliya Dobrynska | f | Olympic Medalists | |
| Nataliya Kuznetsova-Lobanova | f | Olympic Medalists | |
| Nataliya Tobias | f | Olympic Medalists | |
| Natallia Mikhnevich | f | Olympic Medalists | |
| Natallia Sazanovich | f | Olympic Medalists | |
| Natalya Bochina | f | Olympic Medalists | |
| Natalya Butuzova | f | Olympic Medalists | |
| Natalya Ivanova | f | Olympic Medalists | |
| Natalya Klimova | f | Olympic Medalists | |
| Natalya Lebedeva | f | Olympic Medalists | |
| Natalya Lisovskaya | f | Olympic Medalists | |
| Natalya Meshcheryakova | f | Olympic Medalists | |
| Natalya Pechonkina | f | Olympic Medalists | |
| Natalya Sadova | f | Olympic Medalists | |
| Natalya Shikolenko | f | Olympic Medalists | |
| Natalya Sokolova | f | Olympic Medalists | |
| Natalya Strunnikova | f | Olympic Medalists | |
| Natalya Ustinova | f | Olympic Medalists | |
| Natalya Voronova | f | Olympic Medalists | |
| Natalya Zasulskaya | f | Olympic Medalists | |
| Natasha Kaiser-Brown | f | Olympic Medalists | |
| Natasha Korolyova | f | Notable Musicians | |
| Natasha Romanova | f | Fictional Characters from Books, Fictional Characters from Movies | |
| Nate | m | Hurricanes and Tropical Storms | |
| Nate | m | Hurricanes and Tropical Storms | |
| Nate Archibald | m | Hall-of-Famers, Notable Athletes | |
| Nate Dusing | m | Olympic Medalists | |
| Nate Mendel | m | Rock and Roll Hall-of-Famers | |
| Nate Nelson | m | Rock and Roll Hall-of-Famers | |
| Nate Schierholtz | m | Olympic Medalists | |
| Nate Thurmond | m | Hall-of-Famers, Notable Athletes | |
| Nath Í | m | Irish Kings | |
| Nathalan | m | Saints | |
| Nathalie Delon | f | Notable Actors and Entertainers | |
| Nathalie Schneyder | f | Olympic Medalists | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Nathan Deakes | m | Olympic Medalists | |
| Nathan Drake | m | Other Fictional Characters | |
| Nathan Robertson | m | Olympic Medalists | |
| Nathan Söderblom | m | Nobel Prize Winners | |
| Nathaniel | m | Shakespearian Characters | |
| Sir Nathaniel | m | Shakespearian Characters | |
| Nathaniel John Cartmell | m | Olympic Medalists | |
| Nathaniel "Kidd Creole" Glover | m | Rock and Roll Hall-of-Famers | |
| Nathaniel Hawthorne | m | Notable Writers | |
| Nathan-Melech | m | Biblical Characters | |
| Natio | f | Characters in Roman Mythology | |
| Naubolus | m | Characters in Greek Mythology | |
| Naubolus | m | Characters in Greek Mythology | |
| Naubolus | m | Characters in Greek Mythology | |
| Naubolus | m | Characters in Greek Mythology | |
| Naucrate | f | Characters in Greek Mythology | |
| Naum Gabo | m | Notable Artists | |
| Nauplius | m | Characters in Greek Mythology | |
| Nauplius | m | Characters in Greek Mythology | |
| Naus | m | Characters in Greek Mythology | |
| Nausicaa | f | Characters in Greek Mythology | |
| Nausidame | f | Characters in Greek Mythology | |
| Nausimedon | m | Characters in Greek Mythology | |
| Nausinous | m | Characters in Greek Mythology | |
| Nausithoe | f | Characters in Greek Mythology | |
| Nausithous | m | Characters in Greek Mythology | |
| Nausithous | m | Characters in Greek Mythology | |
| Nausithous | m | Characters in Greek Mythology | |
| Nautes | m | Characters in Roman Mythology | |
| Nauteus | m | Characters in Greek Mythology | |
| Nawal El Moutawakel | f | Olympic Medalists | |
| Nazarene | m | Biblical Characters | |
| Nazaria Ignacia March Mesa | f | Saints | |
| Nazarius | m | Saints | |
| Nduka Awazie | m | Olympic Medalists | |
| Neaera | f | Characters in Greek Mythology | |
| Neaera | f | Characters in Greek Mythology | |
| Neaera | f | Characters in Greek Mythology | |
| Neaera | f | Characters in Greek Mythology | |
| Neaera | f | Characters in Greek Mythology | |
| Neal Schon | m | Rock and Roll Hall-of-Famers | |
| Neal Smith | m | Rock and Roll Hall-of-Famers | |
| Nealce | f | Characters in Greek Mythology | |
| Nealces | m | Characters in Greek Mythology | |
| Neandrus | m | Characters in Greek Mythology | |
| Neariah | m | Biblical Characters | |
| Neariah | m | Biblical Characters | |
| Nebai | m | Biblical Characters | |
| Nebaioth | m | Biblical Characters | |
| Nebat | m | Biblical Characters | |
| Nabu | m | Biblical Characters, Other Mythological Characters | |
| Nebo | m | Biblical Characters | |
| Nebojša Zorkić | m | Olympic Medalists | |
| Nebrophonus | m | Characters in Greek Mythology | |
| Nebrophonus | m | Characters in Greek Mythology | |
| Nebuchadnezzar | m | Biblical Characters, Other Royalty | |
| Nebusarsekim | m | Biblical Characters | |
| Nebushazban | m | Biblical Characters | |
| Nebuzaradan | m | Biblical Characters | |
| Necho I | m | Egyptian Pharaohs | |
| Necho II | m | Biblical Characters, Egyptian Pharaohs | |
| Nectanebo I | m | Egyptian Pharaohs | |
| Nectanebo II | m | Egyptian Pharaohs | |
| Ned Flanders | m | Fictional Characters from Television | |
| Ned Hanlon | m | Hall-of-Famers | |
| Ned Stark | m | Fictional Characters from Books, Fictional Characters from Television | |
| Neda | f | Characters in Greek Mythology | |
| Nedabiah | m | Biblical Characters | |
| Nedo Nadi | m | Notable Athletes, Olympic Medalists | |
| Nedra Talley | f | Rock and Roll Hall-of-Famers | |
| Nedymnus | m | Characters in Greek Mythology | |
| Neferneferuaten | f | Egyptian Pharaohs | |
| Nefertiti | f | Other Royalty | |
| Negan Smith | m | Fictional Characters from Television | |
| Nehemiah | m | Biblical Characters | |
| Nehemiah | m | Biblical Characters | |
| Nehemiah | m | Biblical Characters | |
| Nehushta | f | Biblical Characters | |
| Neil Armstrong | m | Notable Explorers and Adventurers | |
| Neil Brooks | m | Olympic Medalists | |
| Neil Cochran | m | Olympic Medalists | |
| Neil Colville | m | Hall-of-Famers | |
| Neil Diamond | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Neil Giraldo | m | Rock and Roll Hall-of-Famers | |
| Neil Johnston | m | Hall-of-Famers, Notable Athletes | |
| Neil Robertson | m | Notable Athletes | |
| Neil deGrasse Tyson | m | Notable Scientists and Inventors | |
| Neil Walker | m | Olympic Medalists | |
| Neil Young | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Neileus | m | Characters in Greek Mythology | |
| Neisser Bent | m | Olympic Medalists | |
| Neith | f | Characters in Egyptian Mythology | |
| Nekoda | m | Biblical Characters | |
| Neleus | m | Characters in Greek Mythology | |
| Nell | f | Shakespearian Characters | |
| Nellas | f | Tolkien's Characters | |
| Nelli Feryabnikova | f | Olympic Medalists | |
| Nellie Bly | f | Notable Journalists | |
| Nellie Fox | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Nellie Halstead | f | Olympic Medalists | |
| Nellie Kim | f | Notable Athletes, Olympic Medalists | |
| Nellie Taft | f | American First Ladies | |
| Nelly Sachs | f | Nobel Prize Winners, Notable Writers | |
| Nelo | f | Characters in Greek Mythology | |
| Nels Stewart | m | Hall-of-Famers, Most Valuable Players | |
| Nelson Chelle | m | Olympic Medalists | |
| Nelson Demarco | m | Olympic Medalists | |
| Nelson Diebel | m | Olympic Medalists | |
| Nelson Évora | m | Olympic Medalists | |
| Nelson Mandela | m | Nobel Prize Winners, Notable Activists and Revolutionaries, Other Leaders | |
| Nelson Piquet | m | Notable Athletes | |
| Nelson Prudêncio | m | Olympic Medalists | |
| Nemea | f | Characters in Greek Mythology | |
| Nemertes | f | Characters in Greek Mythology | |
| Nemesion | m | Saints | |
| Nemesis | f | Characters in Greek Mythology | |
| Captain Nemo | m | Fictional Characters from Books | |
| Nemo | m | Fictional Characters from Movies | |
| Nemuel | m | Biblical Characters | |
| Nemuel | m | Biblical Characters | |
| Nena | f | Notable Musicians | |
| Nenad Vukanić | m | Olympic Medalists | |
| Neo | m | Fictional Characters from Movies | |
| Neomeris | f | Characters in Greek Mythology | |
| Neon | m | Saints | |
| Neophron | m | Characters in Greek Mythology | |
| Neoptolemus | m | Characters in Greek Mythology | |
| Neot | m | Saints | |
| Nephalion | m | Characters in Greek Mythology | |
| Nepheg | m | Biblical Characters | |
| Nepheg | m | Biblical Characters | |
| Nephele | f | Characters in Greek Mythology | |
| Nephele | f | Characters in Greek Mythology | |
| Nephele | f | Characters in Greek Mythology | |
| Nepherites I | m | Egyptian Pharaohs | |
| Nepherites II | m | Egyptian Pharaohs | |
| Nephthys | f | Characters in Egyptian Mythology | |
| Nephus | m | Characters in Greek Mythology | |
| Neptune | m | Characters in Roman Mythology | |
| Ner | m | Biblical Characters | |
| Ner | m | Biblical Characters | |
| Nera White | f | Hall-of-Famers, Notable Athletes | |
| Nerdanel | f | Tolkien's Characters | |
| Nereis | f | Characters in Greek Mythology | |
| Nereus | m | Saints | |
| Nereus | m | Characters in Greek Mythology | |
| Nereus | m | Biblical Characters | |
| Nergal | m | Biblical Characters, Other Mythological Characters | |
| Nergalsarezer | m | Biblical Characters | |
| Nergalsarezer | m | Biblical Characters | |
| Neri | m | Biblical Characters | |
| Neriah | m | Biblical Characters | |
| Nerissa | f | Shakespearian Characters | |
| Neritus | m | Characters in Greek Mythology | |
| Nerses | m | Saints | |
| Nerses I the Great | m | Saints | |
| Nesaea | f | Characters in Greek Mythology | |
| Neso | f | Characters in Greek Mythology | |
| Nesson | m | Characters in Greek Mythology | |
| Nessus | m | Characters in Greek Mythology | |
| Nessus | m | Characters in Greek Mythology | |
| Nessus | m | Characters in Greek Mythology | |
| Nestor | m | Characters in Greek Mythology, Shakespearian Characters | |
| Nestor of Magydos | m | Saints | |
| Néstor Kirchner | m | Argentine Presidents | |
| Nesus | m | Characters in Greek Mythology | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethaniah | m | Biblical Characters | |
| Nethaniah | m | Biblical Characters | |
| Nethaniah | m | Biblical Characters | |
| Nethaniah | m | Biblical Characters | |
| Netta | f | Eurovision Song Contest Winners, Notable Musicians | |
| Netti Witziers-Timmer | f | Olympic Medalists | |
| Neurus | m | Characters in Greek Mythology | |
| Nevill Francis Mott | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Neville Hayes | m | Olympic Medalists | |
| Nezha Bidouane | f | Olympic Medalists | |
| Neziah | m | Biblical Characters | |
| Võ Nguyên Giáp | m | Notable Military Figures | |
| Xiong Ni | m | Olympic Medalists | |
| Nia Segamain | m | Characters in Celtic Mythology, Irish Kings | |
| Niall Caille | m | Irish Kings | |
| Niall Frossach | m | Irish Kings | |
| Niall Glúndub | m | Irish Kings | |
| Niall Noígíallach | m | Irish Kings | |
| Niauius | m | Characters in Greek Mythology | |
| Nibhaz | m | Biblical Characters | |
| Nicaea | f | Characters in Greek Mythology | |
| Nicandra | f | Characters in Greek Mythology | |
| Nicanor | m | Shakespearian Characters | |
| Nicanor the Deacon | m | Biblical Characters, Saints | |
| Nicasius of Rheims | m | Saints | |
| Nicasius Janssen of Heeze | m | Saints | |
| Niccolò de' Conti | m | Notable Explorers and Adventurers | |
| Niccolò Albergati | m | Saints | |
| Niccolò Machiavelli | m | Notable Philosophers and Thinkers | |
| Niccolò Paganini | m | Notable Musicians | |
| Nice | f | Characters in Greek Mythology | |
| Nicéphore Niépce | m | Notable Scientists and Inventors | |
| Nicephorus | m | Saints | |
| Nicephorus I | m | Roman and Byzantine Emperors | |
| Nicephorus II Phocas | m | Roman and Byzantine Emperors | |
| Nicephorus III Botaniates | m | Roman and Byzantine Emperors | |
| Niceta Plaja Xifra de San Prudencia | f | Saints | |
| Nicetas | m | Saints | |
| Nicetas | m | Saints | |
| Nicetas of Constantinople | m | Saints | |
| Nicetas the Goth | m | Saints | |
| Nicetius | m | Saints | |
| Niceto Alcalá-Zamora | m | Spanish Prime Ministers | |
| Nicholas | m | Bishops of Rome and the Popes, Saints | |
| Nicholas | m | Bishops of Rome and the Popes | |
| Nicholas | m | Hurricanes and Tropical Storms | |
| Nicholas | m | Hurricanes and Tropical Storms | |
| Nicholas | m | Shakespearian Characters | |
| Nicholas II | m | Bishops of Rome and the Popes | |
| Nicholas III | m | Bishops of Rome and the Popes | |
| Nicholas IV | m | Bishops of Rome and the Popes | |
| Nicholas of Cusa | m | Notable Philosophers and Thinkers | |
| Nicholas of Hungary | m | Saints | |
| Nicholas the Pilgrim | m | Saints | |
| Nicholas V | m | Bishops of Rome and the Popes | |
| Nicholas Murray Butler | m | Nobel Prize Winners | |
| Nicholas Fortiguera | m | Saints | |
| Nicholas Garlick | m | Saints | |
| Nicholas Giustiniani | m | Saints | |
| Nicholas Hermansson | m | Saints | |
| Nicholas Horner | m | Saints | |
| Nicholas Bunkerd Kitbamrung | m | Saints | |
| Nicholas Owen | m | Saints | |
| Nicholas Postgate | m | Saints | |
| Nicholas Puglia | m | Saints | |
| Nicholas Rubashov | m | Fictional Characters from Books | |
| Nicholas Sparks | m | Notable Writers | |
| Nicholas Sprenger | m | Olympic Medalists | |
| Nicholas The | m | Saints | |
| Sir Nicholas Vaux | m | Shakespearian Characters | |
| Nicholas Winton | m | Notable Activists and Revolutionaries | |
| Nicholas Woodfen | m | Saints | |
| Nicippe | f | Characters in Greek Mythology | |
| Nicippe | f | Characters in Greek Mythology | |
| "Nearly Headless" Nick | m | Harry Potter Characters | |
| Nick Adams | m | Fictional Characters from Books | |
| Nick Bottom | m | Shakespearian Characters | |
| Nick Buoniconti | m | Hall-of-Famers | |
| Nick Carraway | m | Fictional Characters from Books | |
| Nick Ffrost | m | Olympic Medalists | |
| Nick Gillingham | m | Olympic Medalists | |
| Nick Hysong | m | Olympic Medalists | |
| Nick Kimpton | m | Olympic Medalists | |
| Nick Mason | m | Rock and Roll Hall-of-Famers | |
| Nick Massi | m | Rock and Roll Hall-of-Famers | |
| Nick Nolte | m | Notable Actors and Entertainers | |
| Nick Offerman | m | Notable Actors and Entertainers | |
| Nick Rhodes | m | Rock and Roll Hall-of-Famers | |
| Nick Swardson | m | Notable Actors and Entertainers | |
| Nick Whitehead | m | Olympic Medalists | |
| Nick Willis | m | Olympic Medalists | |
| Nick Winter | m | Olympic Medalists | |
| Nicklas Lidström | m | Hall-of-Famers, Notable Athletes | |
| Nico Landeweerd | m | Olympic Medalists | |
| Nicocreon | m | Characters in Greek Mythology | |
| Nicodamas | m | Characters in Greek Mythology | |
| Nicodemus | m | Biblical Characters, Saints | |
| Nicodromus | m | Characters in Greek Mythology | |
| Nicola of Gesturi | m | Saints | |
| Nicola of Tolentino | m | Saints | |
| Nicola Pisano | m | Notable Artists | |
| Nicola Vizzoni | m | Olympic Medalists | |
| Nicolaas Bloembergen | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Nicolaas Pieck | m | Saints | |
| Nicolaas Poppel | m | Saints | |
| Nicolae Crețulescu | m | Romanian Presidents and Prime Ministers | |
| Nicolae Golescu | m | Romanian Presidents and Prime Ministers | |
| Nicolae Grigorescu | m | Notable Artists | |
| Nicolae Iorga | m | Romanian Presidents and Prime Ministers | |
| Nicolae Rădescu | f | Romanian Presidents and Prime Ministers | |
| Nicolas | m | Biblical Characters | |
| Nicolas Appert | m | Notable Scientists and Inventors | |
| Nicolás Avellaneda | m | Argentine Presidents | |
| Nicolas Boileau-Despréaux | m | Notable Writers | |
| Nicolas Cage | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Nicolas Léonard Sadi Carnot | m | Notable Scientists and Inventors | |
| Nicolas-Joseph Cugnot | m | Notable Scientists and Inventors | |
| Nicolás Factor | m | Saints | |
| Nicolas Poussin | m | Notable Artists | |
| Nicolas Roland | m | Saints | |
| Nicolás Salmerón | m | Spanish Prime Ministers | |
| Nicolas Sarkozy | m | French Presidents and Prime Ministers | |
| Nicolas Steno | m | Notable Scientists and Inventors, Saints | |
| Nicolaus Copernicus | m | Notable Scientists and Inventors | |
| Nicole | f | Hurricanes and Tropical Storms | |
| Nicole | f | Hurricanes and Tropical Storms | |
| Nicole | f | Hurricanes and Tropical Storms | |
| Nicole | f | Hurricanes and Tropical Storms | |
| Nicole Haislett | f | Olympic Medalists | |
| Nicole Kidman | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Nicole Livingstone | f | Olympic Medalists | |
| Nicole Scherzinger | f | Notable Musicians | |
| Nicolle Payne | f | Olympic Medalists | |
| Nicomachus | m | Characters in Greek Mythology | |
| Nicomachus | m | Characters in Greek Mythology | |
| Nicomedes | m | Saints | |
| Nicostratus | m | Saints | |
| Nicostratus | m | Saints | |
| Nicostratus | m | Characters in Greek Mythology | |
| Niels | m | Danish Kings and Queens | |
| Niels Henrik Abel | m | Notable Philosophers and Thinkers | |
| Niels Bohr | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Niels Ryberg Finsen | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Niels Kaj Jerne | m | Nobel Prize Winners | |
| Niënor | f | Tolkien's Characters | |
| Nigel | m | Hurricanes and Tropical Storms | |
| Nigel Harrison | m | Rock and Roll Hall-of-Famers | |
| Nigel Mansell | m | Notable Athletes | |
| Nijolė Sabaitė | f | Olympic Medalists | |
| Nijs Korevaar | m | Olympic Medalists | |
| Nike | f | Characters in Greek Mythology | |
| Niki Bakoyianni | f | Olympic Medalists | |
| Niki de Saint Phalle | f | Notable Artists | |
| Niki Lauda | m | Notable Athletes | |
| Nikita Cuffe | f | Olympic Medalists | |
| Nikita Khrushchev | m | Other Leaders | |
| Nikita Kucherov | m | Most Valuable Players, Notable Athletes | |
| Nikki McCray | f | Olympic Medalists | |
| Niklaus von Flüe | m | Saints | |
| Nikola Jokić | m | Most Valuable Players, Notable Athletes, Olympic Medalists | |
| Nikola Kuljača | m | Olympic Medalists | |
| Nikola Lončar | m | Olympic Medalists | |
| Nikola Plećaš | m | Olympic Medalists | |
| Nikola Radulović | m | Olympic Medalists | |
| Nikola Tavelić | m | Saints | |
| Nikola Tesla | m | Notable Scientists and Inventors | |
| Nikolaas Tinbergen | m | Nobel Prize Winners | |
| Nikolai I | m | Russian Grand Dukes and Tsars | |
| Nikolai II | m | Russian Grand Dukes and Tsars, Saints | |
| Nikolai Andrianov | m | Notable Athletes, Olympic Medalists | |
| Nikolai Bagley | m | Olympic Medalists | |
| Nikolai Gogol | m | Notable Writers | |
| Nikolai Kuznetsov | m | Olympic Medalists | |
| Nikolai Lobachevsky | m | Notable Philosophers and Thinkers | |
| Nikolai Melnikov | m | Olympic Medalists | |
| Nikolai Noskov | m | Notable Musicians | |
| Nikolai Pankin | m | Olympic Medalists | |
| Nikolai Rerikh | m | Notable Artists | |
| Nikolai Rimsky-Korsakov | m | Notable Musicians | |
| Nikolai Smirnov | m | Olympic Medalists | |
| Nikolai Yevseyev | m | Olympic Medalists | |
| Nikolaos Georgantas | m | Olympic Medalists | |
| Nikolaos Siranidis | m | Olympic Medalists | |
| Nikolaus Gross | m | Saints | |
| Nikolaus Otto | m | Notable Scientists and Inventors | |
| Nikolay Basov | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Nikolay Chernetskiy | m | Olympic Medalists | |
| Nikolay Deryugin | m | Olympic Medalists | |
| Nikolay Kalashnikov | m | Olympic Medalists | |
| Nikolay Karamzin | m | Notable Philosophers and Thinkers | |
| Nikolay Kirov | m | Olympic Medalists | |
| Nikolay Kolesnikov | m | Olympic Medalists | |
| Nikolay Kozlov | m | Olympic Medalists | |
| Nikolay Maksimov | m | Olympic Medalists | |
| Nikolay Przhevalsky | m | Notable Explorers and Adventurers | |
| Nikolay Semyonov | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Nikolay Sidorov | m | Olympic Medalists | |
| Nikolay Smaga | m | Olympic Medalists | |
| Nikolay Sokolov | m | Olympic Medalists | |
| Nikole Mitchell | f | Olympic Medalists | |
| Nikolina Shtereva | f | Olympic Medalists | |
| Nikos Galis | m | Hall-of-Famers, Notable Athletes | |
| Nikos Kazantzakis | m | Notable Writers | |
| Nileus | m | Characters in Greek Mythology | |
| Nils Backlund | m | Olympic Medalists | |
| Nils Engdahl | m | Olympic Medalists | |
| Nils Frykberg | m | Olympic Medalists | |
| Nils Liedholm | m | Notable Athletes | |
| Nils Sandström | m | Olympic Medalists | |
| Nils Schumann | m | Olympic Medalists | |
| Nils Skoglund | m | Olympic Medalists | |
| Nilton Pacheco | m | Olympic Medalists | |
| Nílton Santos | m | Notable Athletes | |
| Nilus | m | Characters in Greek Mythology | |
| Nimatullah Youssef Kassab Al-Hardini | m | Saints | |
| Nimloth | f | Tolkien's Characters | |
| Nimrod | m | Biblical Characters | |
| Nimshi | m | Biblical Characters | |
| Nina Dumbadze | f | Olympic Medalists | |
| Nina Ponomaryova | f | Olympic Medalists | |
| Nina Simone | f | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Nina Zhivanevskaya | f | Olympic Medalists | |
| Nina Zyuskova | f | Olympic Medalists | |
| Ninel Krutova | f | Olympic Medalists | |
| Zhang Ning | f | Olympic Medalists | |
| Ninian | m | Saints | |
| Nino | f | Saints | |
| Nino Bravo | m | Notable Musicians | |
| Nino Rota | m | Notable Musicians | |
| Nintoku | m | Japanese Emperors | |
| Ninus | m | Characters in Greek Mythology | |
| Niobe | f | Characters in Greek Mythology | |
| Niobe | f | Characters in Greek Mythology | |
| Niphaeus | m | Characters in Roman Mythology | |
| Nireus | m | Characters in Greek Mythology | |
| Nireus | m | Characters in Greek Mythology | |
| Nirus | m | Characters in Greek Mythology | |
| Nisaeus | m | Characters in Greek Mythology | |
| Nisas | m | Characters in Greek Mythology | |
| Nisroch | m | Biblical Characters, Other Mythological Characters | |
| Nissaeus | m | Characters in Greek Mythology | |
| Nisus | m | Characters in Greek Mythology | |
| Nisus | m | Characters in Greek Mythology | |
| Nisus | m | Characters in Roman Mythology | |
| Nixon Kiprotich | m | Olympic Medalists | |
| Nizami Ganjavi | m | Notable Writers | |
| Noadiah | m | Biblical Characters | |
| Noadiah | f | Biblical Characters | |
| Noah | m | Biblical Characters | |
| Noah | f | Biblical Characters | |
| Noah Ngenyi | m | Olympic Medalists | |
| Noam Chomsky | m | Notable Philosophers and Thinkers | |
| Nobah | m | Biblical Characters | |
| Noboru Terada | m | Olympic Medalists | |
| Nobuharu Asahara | m | Olympic Medalists | |
| Nobuhiko Matsunaka | m | Olympic Medalists | |
| Rokujo | m | Japanese Emperors | |
| Oda Nobunaga | m | Notable Military Figures | |
| Nobuo Arai | m | Olympic Medalists | |
| Nobutaka Taguchi | m | Olympic Medalists | |
| Nodar Dzhordzhikiya | m | Olympic Medalists | |
| Nodar Gvakhariya | m | Olympic Medalists | |
| Noé Hernández | m | Olympic Medalists | |
| Noe Mawaggali | m | Saints | |
| Noeki Klein | f | Olympic Medalists | |
| Noel | m | Hurricanes and Tropical Storms | |
| Noel | m | Hurricanes and Tropical Storms | |
| Noel | m | Hurricanes and Tropical Storms | |
| Noël Chabanel | m | Saints | |
| Noël Delberghe | m | Olympic Medalists | |
| Noel Freeman | m | Olympic Medalists | |
| Noel Gallagher | m | Notable Musicians | |
| Noël Pinot | m | Saints | |
| Noel Purcell | m | Olympic Medalists | |
| Noel Redding | m | Rock and Roll Hall-of-Famers | |
| Noemi | f | Notable Musicians | |
| Noemi Lung | f | Olympic Medalists | |
| Noemí Simonetto de Portela | f | Olympic Medalists | |
| Noémi Tóth | f | Olympic Medalists | |
| Noemon | m | Characters in Greek Mythology | |
| Noemon | m | Characters in Greek Mythology | |
| Noemon | m | Characters in Greek Mythology | |
| Noemon | m | Characters in Roman Mythology | |
| Nogah | m | Biblical Characters | |
| Nohah | m | Biblical Characters | |
| Nokie Edwards | m | Rock and Roll Hall-of-Famers | |
| Nolan Richardson | m | Hall-of-Famers | |
| Nolan Ryan | m | Hall-of-Famers, Notable Athletes | |
| Nomia | f | Characters in Greek Mythology | |
| Nomion | m | Characters in Greek Mythology | |
| Nomion | m | Characters in Greek Mythology | |
| Nomion | m | Characters in Greek Mythology | |
| Nomius | m | Characters in Greek Mythology | |
| Nomius | m | Characters in Greek Mythology | |
| Nomius | m | Characters in Greek Mythology | |
| Nona Gaprindashvili | f | Notable Athletes | |
| Nonacris | f | Characters in Greek Mythology | |
| Nonna of Nazianzus | f | Saints | |
| Nonnus | m | Saints | |
| Nora Mørk | f | Notable Athletes, Olympic Medalists | |
| Norah Jones | f | Grammy Award Winners, Notable Musicians | |
| Norax | m | Characters in Greek Mythology | |
| Norbert of Xanten | m | Saints | |
| Norbert Dobeleit | m | Olympic Medalists | |
| Norbert Elias | m | Notable Philosophers and Thinkers | |
| Norbert Hosnyánszky | m | Olympic Medalists | |
| Norbert Madaras | m | Olympic Medalists | |
| Norbert Rózsa | m | Olympic Medalists | |
| Norbert Wiener | m | Notable Philosophers and Thinkers | |
| Norberto González | m | Olympic Medalists | |
| Norberto Téllez | m | Olympic Medalists | |
| Reizei | m | Japanese Emperors | |
| Norihiro Nakamura | m | Olympic Medalists | |
| Takakura | m | Japanese Emperors | |
| Go-Murakami | m | Japanese Emperors | |
| Norm Ullman | m | Hall-of-Famers | |
| Norm Van Brocklin | m | Hall-of-Famers | |
| Norma Croker-Fleming | f | Olympic Medalists | |
| Norma Desmond | f | Fictional Characters from Movies | |
| Norma Shearer | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Norma Thrower | f | Olympic Medalists | |
| Norman Angell | m | Nobel Prize Winners | |
| Norman Bates | m | Fictional Characters from Movies | |
| Norman Borlaug | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Norman Alexander "Red" Dutton | m | Hall-of-Famers | |
| Norman Julius "Boomer" Esiason | m | Most Valuable Players | |
| Norman Foster | m | Notable Artists | |
| Norman Hallows | m | Olympic Medalists | |
| Norman Haworth | m | Nobel Prize Winners | |
| Norman Pritchard | m | Olympic Medalists | |
| Norman Foster Ramsey Jr. | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Norman Read | m | Olympic Medalists | |
| Norman Rockwell | m | Notable Artists | |
| Norman "Terminator X" Rogers | m | Rock and Roll Hall-of-Famers | |
| Norman Ross | m | Olympic Medalists | |
| Norman "Turkey" Stearnes | m | Hall-of-Famers | |
| Norman Taber | m | Olympic Medalists | |
| Norman Taurog | m | Notable Filmmakers, Oscar Award Winners | |
| Mrs. Norris | f | Harry Potter Characters | |
| Notburga | f | Saints | |
| Notburga | f | Saints | |
| Nothelm | m | Saints | |
| Notker the Stammerer | m | Saints | |
| Notus | m | Characters in Greek Mythology | |
| Noureddine Morceli | m | Olympic Medalists | |
| Nouria Mérah-Benida | f | Olympic Medalists | |
| Novatian | m | Bishops of Rome and the Popes | |
| Novatus | m | Saints | |
| Novella Calligaris | f | Olympic Medalists | |
| Novellone | m | Saints | |
| Nuadu Finn Fáil | m | Characters in Celtic Mythology, Irish Kings | |
| Nuadu Necht | m | Characters in Celtic Mythology, Irish Kings | |
| Suiko | f | Japanese Emperors | |
| Numa | m | Characters in Roman Mythology | |
| Numa | m | Characters in Roman Mythology | |
| Numa Pompilius | m | Characters in Roman Mythology | |
| Numanus | m | Characters in Roman Mythology | |
| Numerian of Trier | m | Saints | |
| Numicius | m | Characters in Roman Mythology | |
| Numitor | m | Characters in Roman Mythology | |
| Numitor | m | Characters in Roman Mythology | |
| Nun | m | Biblical Characters | |
| Nunilo | f | Saints | |
| Nuno José Severo de Mendoça Rolim de Moura Barreto | m | Portuguese Presidents and Prime Ministers | |
| Nuno Gonçalves | m | Notable Artists | |
| Nuno Álvares Pereira | m | Saints | |
| Nunzio Sulprizio | m | Saints | |
| Nurfitriyana Saiman | f | Olympic Medalists | |
| Nurlan Mendygaliev | m | Olympic Medalists | |
| Nusrat Fateh Ali Khan | m | Notable Musicians | |
| Nychius | m | Characters in Greek Mythology | |
| Nycteis | f | Characters in Greek Mythology | |
| Nycteus | m | Characters in Greek Mythology | |
| Nycteus | m | Characters in Greek Mythology | |
| Nycteus | m | Characters in Greek Mythology | |
| Nyctimene | f | Characters in Greek Mythology | |
| Nyctimus | m | Characters in Greek Mythology | |
| Nykyta Budka | m | Saints | |
| Nym | m | Shakespearian Characters | |
| Nympha | f | Biblical Characters | |
| Nymphe | f | Characters in Greek Mythology | |
| Nymphe | f | Characters in Greek Mythology | |
| Nymphodora | f | Saints | |
| Nyse | f | Characters in Greek Mythology | |
| Nysus | m | Characters in Greek Mythology | |
| Nyusha | f | Notable Musicians | |
| Nyx | f | Characters in Greek Mythology | |
| Tenmu | m | Japanese Emperors | |
| Oana Pantelimon | f | Olympic Medalists | |
| Oba Thompson | m | Olympic Medalists | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obal | m | Biblical Characters | |
| Obdulia of Toledo | f | Saints | |
| Obdulio Varela | m | Notable Athletes | |
| Obed | m | Biblical Characters | |
| Obed | m | Biblical Characters | |
| Obed | m | Biblical Characters | |
| Obed | m | Biblical Characters | |
| Obed | m | Biblical Characters | |
| Obed-Edom | m | Biblical Characters | |
| Obed-Edom | m | Biblical Characters | |
| Obed-Edom | m | Biblical Characters | |
| Obelix | m | Fictional Characters from Books | |
| Oberon | m | Fictional Characters from Plays and Musicals, Shakespearian Characters | |
| Obil | m | Biblical Characters | |
| Obitius | m | Saints | |
| Shomu | m | Japanese Emperors | |
| Obi-Wan Kenobi | m | Fictional Characters from Movies | |
| Obrimus | m | Characters in Greek Mythology | |
| Obrimus | m | Characters in Greek Mythology | |
| Ocealus | m | Characters in Greek Mythology | |
| Oceanus | m | Characters in Greek Mythology | |
| Ocelas | m | Characters in Greek Mythology | |
| Ochesius | m | Characters in Greek Mythology | |
| Ocheus | m | Characters in Greek Mythology | |
| Ochimus | m | Characters in Greek Mythology | |
| Ochran | m | Biblical Characters | |
| Ochus | m | Characters in Greek Mythology | |
| Ocitus | m | Characters in Greek Mythology | |
| Ocnus | m | Characters in Greek Mythology | |
| Ocnus | m | Characters in Roman Mythology | |
| Ocresia | f | Characters in Greek Mythology | |
| Ocreus | m | Characters in Greek Mythology | |
| Octave Mirbeau | m | Notable Writers | |
| Octavia | f | Shakespearian Characters | |
| Octavia Spencer | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Octavian | m | Saints | |
| Octavian Goga | m | Romanian Presidents and Prime Ministers | |
| Octavio Paz | m | Nobel Prize Winners, Notable Writers | |
| Octavius | m | Saints | |
| Ocyale | f | Characters in Greek Mythology | |
| Ocydrome | f | Characters in Greek Mythology | |
| Ocydromus | m | Characters in Greek Mythology | |
| Ocynoe | f | Characters in Greek Mythology | |
| Ocypete | f | Characters in Greek Mythology | |
| Ocypete | f | Characters in Greek Mythology | |
| Ocypete | f | Characters in Greek Mythology | |
| Ocyrrhoe | f | Characters in Greek Mythology | |
| Ocyrrhoe | f | Characters in Greek Mythology | |
| Ocyrrhoe | f | Characters in Greek Mythology | |
| Ocythous | m | Characters in Greek Mythology | |
| Ocythous | m | Characters in Greek Mythology | |
| Ocythous | m | Characters in Greek Mythology | |
| Ocytus | m | Characters in Greek Mythology | |
| Oda of Scotland | f | Saints | |
| Odd Hassel | m | Nobel Prize Winners | |
| Oddino Barrotti | m | Saints | |
| Oded | m | Biblical Characters | |
| Oded | m | Biblical Characters | |
| Odette | f | Hurricanes and Tropical Storms | |
| Odette | f | Hurricanes and Tropical Storms | |
| Odhran | m | Saints | |
| Odilia | f | Saints | |
| Odilo of Cluny | m | Saints | |
| Odilon Redon | m | Notable Artists | |
| Odin | m | Characters in Norse Mythology | |
| Odius | m | Characters in Greek Mythology | |
| Odius | m | Characters in Greek Mythology | |
| Odo | m | Saints | |
| Odo | m | Saints | |
| Odo Count of Paris | m | Frankish and French Kings | |
| Odo of Beauvais | m | Saints | |
| Odo of Cluny | m | Saints | |
| Odo of Novara | m | Saints | |
| Odo the Good | m | Saints | |
| Ödön Földessy | m | Olympic Medalists | |
| Ödön Gróf | m | Olympic Medalists | |
| Odorico of Pordenone | m | Saints | |
| Odran | m | Saints | |
| Odrussa | f | Characters in Greek Mythology | |
| Odulf | m | Saints | |
| Oduvald | m | Saints | |
| Odysseas Elytis | m | Nobel Prize Winners, Notable Writers | |
| Yomei | m | Japanese Emperors | |
| Oeagrus | m | Characters in Greek Mythology | |
| Oeax | m | Characters in Greek Mythology | |
| Oebalus | m | Characters in Greek Mythology | |
| Oebalus | m | Characters in Greek Mythology | |
| Oebalus | m | Characters in Roman Mythology | |
| Oebasus | m | Characters in Greek Mythology | |
| Oeceus | m | Characters in Greek Mythology | |
| Oechalia | f | Characters in Greek Mythology | |
| Oedipus | m | Characters in Greek Mythology | |
| Oeme | f | Characters in Greek Mythology | |
| Oenarus | m | Characters in Greek Mythology | |
| Oeneus | m | Characters in Greek Mythology | |
| Oeneus | m | Characters in Greek Mythology | |
| Oeneus | m | Characters in Greek Mythology | |
| Oeneus | m | Characters in Greek Mythology | |
| Óengus | m | Scottish Kings and Queens | |
| Oengus mac Fergus | m | Scottish Kings and Queens | |
| Óengus of Tallaght | m | Saints | |
| Óengus Ollom | m | Characters in Celtic Mythology, Irish Kings | |
| Óengus Olmucaid | m | Characters in Celtic Mythology, Irish Kings | |
| Óengus Tuirmech Temrach | m | Characters in Celtic Mythology, Irish Kings | |
| Oenideus | m | Characters in Greek Mythology | |
| Oeno | f | Characters in Greek Mythology | |
| Oenoclus | m | Characters in Greek Mythology | |
| Oenoe | f | Characters in Greek Mythology | |
| Oenoe | f | Characters in Greek Mythology | |
| Oenomaus | m | Characters in Greek Mythology | |
| Oenomaus | m | Characters in Greek Mythology | |
| Oenomaus | m | Characters in Greek Mythology | |
| Oenomaus | m | Characters in Greek Mythology | |
| Oenomaus | m | Characters in Greek Mythology | |
| Oenone | f | Characters in Greek Mythology | |
| Oenone | f | Characters in Greek Mythology | |
| Oenone | f | Characters in Greek Mythology | |
| Oenope | f | Characters in Greek Mythology | |
| Oenopion | m | Characters in Greek Mythology | |
| Oenopion | m | Characters in Greek Mythology | |
| Oenops | m | Characters in Greek Mythology | |
| Oenops | m | Characters in Greek Mythology | |
| Oenotrus | m | Characters in Greek Mythology | |
| Oeoclus | m | Characters in Greek Mythology | |
| Oeolycus | m | Characters in Greek Mythology | |
| Oeonus | m | Characters in Greek Mythology | |
| Oeroe | f | Characters in Greek Mythology | |
| Oestrobles | m | Characters in Greek Mythology | |
| Oestrus | m | Characters in Greek Mythology | |
| Offa | f | Saints | |
| Og | m | Biblical Characters | |
| Ogden Nash | m | Notable Writers | |
| Ögedei Khan | m | Other Royalty | |
| Ogrylus | m | Characters in Greek Mythology | |
| Ogygia | f | Characters in Greek Mythology | |
| Ogygus | m | Characters in Greek Mythology | |
| Ogyrus | m | Characters in Greek Mythology | |
| Ohad | m | Biblical Characters | |
| Yuryaku | m | Japanese Emperors | |
| Ohel | m | Biblical Characters | |
| Oholah | f | Biblical Characters | |
| Oholibah | f | Biblical Characters | |
| Oholibamah | f | Biblical Characters | |
| Oholibamah | m | Biblical Characters | |
| Junnin | m | Japanese Emperors | |
| Oicles | m | Characters in Greek Mythology | |
| Oileus | m | Characters in Greek Mythology | |
| Oileus | m | Characters in Greek Mythology | |
| Óin | m | Tolkien's Characters | |
| Oinanthe | f | Characters in Greek Mythology | |
| Oizys | f | Characters in Greek Mythology | |
| Ojin | m | Japanese Emperors | |
| Kenzo | m | Japanese Emperors | |
| O'Kelly Isley Jr. | m | Rock and Roll Hall-of-Famers | |
| Yun Ok-hee | f | Olympic Medalists | |
| Meisho | f | Japanese Emperors | |
| Oksana Grigorieva | f | Notable Musicians | |
| Olabisi Afolabi | f | Olympic Medalists | |
| Olav II the Holy | m | Norwegian Kings and Queens, Saints | |
| Olajide Olayinka Williams "KSI" Olatunji | m | Notable Actors and Entertainers | |
| Olapade Adeniken | m | Olympic Medalists | |
| Olav | m | Norwegian Kings and Queens | |
| Olav I | m | Norwegian Kings and Queens | |
| Olav III the Quiet | m | Norwegian Kings and Queens | |
| Olav V | m | Norwegian Kings and Queens, Olympic Medalists | |
| Oluf II | m | Danish Kings and Queens, Norwegian Kings and Queens | |
| Olav Sunde | m | Olympic Medalists | |
| Olbus | m | Characters in Greek Mythology | |
| Oldřich Nejedlý | m | Notable Athletes | |
| Ole Rømer | m | Notable Scientists and Inventors | |
| Oleg | m | Russian Grand Dukes and Tsars | |
| Oleg Blokhin | m | Notable Athletes | |
| Oleg Bovin | m | Olympic Medalists | |
| Oleg Fedoseyev | m | Olympic Medalists | |
| Oleg Protopopov | m | Notable Athletes, Olympic Medalists | |
| Oleksandr Bagach | m | Olympic Medalists | |
| Oleksandr Belostenny | m | Olympic Medalists | |
| Oleksandr Krykun | m | Olympic Medalists | |
| Oleksandr Serdyuk | m | Olympic Medalists | |
| Oleksandr Sydorenko | m | Olympic Medalists | |
| Oleksiy Pryhorov | m | Olympic Medalists | |
| Oleksiy Zarytskyi | m | Saints | |
| Olen | m | Characters in Greek Mythology | |
| Olena Antonova | f | Olympic Medalists | |
| Olena Hovorova | f | Olympic Medalists | |
| Olena Krasovska | f | Olympic Medalists | |
| Olena Sadovnycha | f | Olympic Medalists | |
| Olena Zhupina | f | Olympic Medalists | |
| Olena Zhyrko | f | Olympic Medalists | |
| Olenius | m | Characters in Greek Mythology | |
| Olenius | m | Characters in Greek Mythology | |
| Olenus | m | Characters in Greek Mythology | |
| Olenus | m | Characters in Greek Mythology | |
| Olenus | m | Characters in Greek Mythology | |
| Olenus | m | Characters in Greek Mythology | |
| Olesya Barel | f | Olympic Medalists | |
| Olesya Forsheva | f | Olympic Medalists | |
| Olesya Zykina | f | Olympic Medalists | |
| Olga | f | Hurricanes and Tropical Storms | |
| Olga | f | Hurricanes and Tropical Storms | |
| Olga of Kiev | f | Russian Grand Dukes and Tsars, Saints | |
| Olga Arteshina | f | Olympic Medalists | |
| Olga Barysheva-Korostelyova | f | Olympic Medalists | |
| Olga Bogoslovskaya | f | Olympic Medalists | |
| Olga Bondarenko | f | Olympic Medalists | |
| Olga Boznańska | f | Notable Artists | |
| Olga Brusnikina | f | Olympic Medalists | |
| Olga Buryakina | f | Olympic Medalists | |
| Olga Fikotová | f | Olympic Medalists | |
| Olga Gyarmati | f | Olympic Medalists | |
| Olga Kirichenko | f | Olympic Medalists | |
| Olga Korbut | f | Notable Athletes, Olympic Medalists | |
| Olga Kotlyarova | f | Olympic Medalists | |
| Olga Kuragina | f | Olympic Medalists | |
| Olga Kuzenkova | f | Olympic Medalists | |
| Olga Kuzhela | f | Olympic Medalists | |
| Olga Mineyeva | f | Olympic Medalists | |
| Olga Nazarova | f | Olympic Medalists | |
| Olga Novokshchenova | f | Olympic Medalists | |
| Olga Rukavishnikova | f | Olympic Medalists | |
| Olga Shishigina | f | Olympic Medalists | |
| Olga Stulneva | f | Olympic Medalists | |
| Olga Sukharnova | f | Olympic Medalists | |
| Olga Vasyukova | f | Olympic Medalists | |
| Olga Yakovleva | f | Olympic Medalists | |
| Olga Yevkova | f | Olympic Medalists | |
| Olha Bryzhina | f | Olympic Medalists | |
| Olimpiada Ivanova | f | Olympic Medalists | |
| Oliva of Brescia | f | Saints | |
| Olive Oyl | f | Fictional Characters from Movies, Other Fictional Characters | |
| Oliver | m | Saints | |
| Oliver Cromwell | m | English and British Kings and Queens, Notable Military Figures | |
| Oliver de Bois | m | Shakespearian Characters | |
| Oliver Goldsmith | m | Notable Writers | |
| Olivér Halassy | m | Olympic Medalists | |
| Oliver Hardy | m | Notable Actors and Entertainers | |
| Oliver Hart | m | Nobel Prize Winners | |
| Oliver Horn | m | Olympic Medalists | |
| Oliver Kahn | m | Notable Athletes | |
| Oliver Lampe | m | Olympic Medalists | |
| Oliver Macdonald | m | Olympic Medalists | |
| Sir Oliver Martext | m | Shakespearian Characters | |
| Oliver Plunkett | m | Saints | |
| Oliver Seibert | m | Hall-of-Famers | |
| Oliver Smithies | m | Nobel Prize Winners | |
| Oliver Stone | m | Notable Filmmakers, Oscar Award Winners | |
| Oliver E. Williamson | m | Nobel Prize Winners | |
| Olivia | f | Fictional Characters from Plays and Musicals, Shakespearian Characters | |
| Olivia Borlée | f | Olympic Medalists | |
| Olivia de Havilland | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Olivia Newton-John | f | Grammy Award Winners, Notable Actors and Entertainers, Notable Musicians | |
| Olivia Pope | f | Fictional Characters from Television | |
| Olivia Rodrigo | f | Grammy Award Winners, Notable Musicians | |
| Olivier Messiaen | m | Notable Musicians | |
| Olizone | f | Characters in Greek Mythology | |
| Ollan Cassell | m | Olympic Medalists | |
| Ollegarius | m | Saints | |
| Ollie Matson | m | Hall-of-Famers, Olympic Medalists | |
| Ollom Fótla | m | Characters in Celtic Mythology, Irish Kings | |
| Oloetrochus | m | Characters in Greek Mythology | |
| Olof Skötkonung | m | Saints, Swedish Kings and Queens | |
| Oludamola Osayomi | f | Olympic Medalists | |
| Oluf I Hunger | m | Danish Kings and Queens | |
| Olusoji Fasuba | m | Olympic Medalists | |
| Oluyemi Kayode | m | Olympic Medalists | |
| Olwë | m | Tolkien's Characters | |
| Olympas | m | Biblical Characters, Saints | |
| Olympe de Gouges | f | Notable Activists and Revolutionaries | |
| Olympia Bida | f | Saints | |
| Olympia Dukakis | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Olympiades | m | Saints | |
| Olympiades | m | Saints | |
| Olympias | f | Saints | |
| Olympias | f | Other Royalty | |
| Olympius | m | Saints | |
| Olympus | m | Characters in Greek Mythology | |
| Olympusa | f | Characters in Greek Mythology | |
| Omar | m | Hurricanes and Tropical Storms | |
| Omar | m | Biblical Characters | |
| Omar Ajete | m | Olympic Medalists | |
| Omar al-Mukhtar | m | Notable Activists and Revolutionaries | |
| Omar Bradley | m | Notable Military Figures | |
| Omar Khayyám | m | Notable Philosophers and Thinkers, Notable Writers | |
| Omar Linares | m | Olympic Medalists | |
| Omar Little | m | Fictional Characters from Television | |
| Omar Luis | m | Olympic Medalists | |
| Omar Sívori | m | Notable Athletes | |
| Omargus | m | Characters in Greek Mythology | |
| Omelyan Kovch | m | Saints | |
| Omer | m | Saints | |
| Omester | m | Characters in Greek Mythology | |
| O. P. Nayyar | m | Notable Musicians | |
| Omphale | f | Characters in Greek Mythology | |
| Omri | m | Biblical Characters | |
| Omri | m | Biblical Characters | |
| Omri | m | Biblical Characters | |
| Omri | m | Biblical Characters, Israelite and Judean Kings | |
| Omurtag | m | Bulgarian Kings and Tsars | |