Namesakes
Nikolai I
(m) 1796-1855 
Russian Grand Dukes and Tsars 1825-1855
Nikolai II
(m) 1868-1918
Russian Grand Dukes and Tsars 1894-1917
Saints
Nikolai of Denmark
(m) 1999-
Other Royalty 1999-2023 Denmark (prince)
Nikolai Andrianov
(m) 1952-2011
Notable Athletes (gymnastics)
Olympic Medalists 1972; 1976; 1980 artistic gymnastics (silver/bronze/gold)
Nikolai Bagley
(m) 1937-1991
Olympic Medalists 1964 basketball (silver)
Nikolai Denkov
(m) 1962-
Bulgarian Presidents and Prime Ministers 2023-2024 (prime minister)
Nikolai Gogol
(m) 1809-1852
Notable Writers
Nikolai Kinski
(m) 1976-
Notable Actors and Entertainers (actor)
Nikolai Kuznetsov
(m) 1931-1995
Olympic Medalists 1964 water polo (bronze)
Nikolai Lobachevsky
(m) 1792-1856
Notable Philosophers and Thinkers
Nikolai Melnikov
(m) 1948-
Olympic Medalists 1972 water polo (gold)
Nikolai Noskov
(m) 1956-
Notable Musicians
Nikolai Pankin
(m) 1949-2018
Olympic Medalists 1968 swimming - 100 m breaststroke (bronze)
Nikolai Rerikh
(m) 1874-1947
Notable Artists
Nikolai Rimsky-Korsakov
(m) 1844-1908
Notable Musicians
Nikolai Rostov
(m)
Fictional Characters from Books 1869 War and Peace
Nikolai Smirnov
(m) 1961-
Olympic Medalists 1988 water polo (bronze)
Nikolai Tanayev
(m) 1945-2020
Other Leaders 2002-2005 Kyrgyzstan (prime minister)
Nikolai Todorov
(m) 1921-2003
Bulgarian Presidents and Prime Ministers 1990 (president)
Nikolai Yevseyev
(m) 1966-
Olympic Medalists 1988 swimming - 4x100 m freestyle relay (silver)
Nikolai Yezhov
(m) 1895-1940
Notable Evildoers
Nikolay Deryugin
(a.k.a. Nikolai) (m) 1959-
Olympic Medalists 1980 basketball (bronze)
Nikolay Kalashnikov
(a.k.a. Nikolai) (m) 1940-
Olympic Medalists 1964 water polo (bronze)
Nikolay Kirov
(a.k.a. Nikolai) (m) 1957-
Olympic Medalists 1980 800 m (bronze)
Nikolay Kolesnikov
(a.k.a. Nikolai) (m) 1953-
Olympic Medalists 1976 4x100 m relay (bronze)
Nikolay Kozlov
(a.k.a. Nikolai) (m) 1972-
Olympic Medalists 1992; 2000; 2004 water polo (silver/bronze)
Nikolay Maksimov
(a.k.a. Nikolai) (m) 1972-
Olympic Medalists 2000; 2004 water polo (silver/bronze)
Nikolay Sidorov
(a.k.a. Nikolai) (m) 1956-
Olympic Medalists 1980 4x100 m relay (gold)
Nikolay Smaga
(a.k.a. Nikolai) (m) 1938-1981
Olympic Medalists 1968 20 km walk (bronze)