Namesakes
Bulgarian Presidents and Prime Ministers:
1 president, 1 prime minister
(president) Nikolai Todorov 1990 
(prime minister) Nikolai Denkov 2023-
Fictional Characters from Books:
1 character
Nikolai Rostov 1869 War and Peace
Notable Artists:
1 painter
Nikolai Rerikh 1874-1947
Notable Athletes:
1 gymnastics
(gymnastics) Nikolai Andrianov 1952-2011
Notable Musicians:
1 composer, 1 singer
Nikolai Rimsky-Korsakov 1844-1908
Nikolai Noskov 1956-
Notable Philosophers and Thinkers:
1 mathematician
Nikolai Lobachevsky 1792-1856
Notable Writers:
1 playwright
Nikolai Gogol 1809-1852
Olympic Medalists:
8 bronze, 2 gold, 2 silver, 2 silver/bronze, 1 gold/silver/bronze
(bronze) Nikolai Kuznetsov 1964 water polo
(silver) Nikolai Bagley 1964 basketball
(bronze) Nikolay Kalashnikov (a.k.a. Nikolai) 1964 water polo
(bronze) Nikolay Smaga (a.k.a. Nikolai) 1968 20 km walk
(bronze) Nikolai Pankin 1968 swimming - 100 m breaststroke
(gold) Nikolai Melnikov 1972 water polo
(gold/silver/bronze) Nikolai Andrianov 1972; 1976; 1980 artistic gymnastics
(bronze) Nikolay Kolesnikov (a.k.a. Nikolai) 1976 4x100 m relay
(gold) Nikolay Sidorov (a.k.a. Nikolai) 1980 4x100 m relay
(bronze) Nikolay Kirov (a.k.a. Nikolai) 1980 800 m
(bronze) Nikolay Deryugin (a.k.a. Nikolai) 1980 basketball
(bronze) Nikolai Smirnov 1988 water polo
(silver) Nikolai Yevseyev 1988 swimming - 4x100 m freestyle relay
(silver/bronze) Nikolay Kozlov (a.k.a. Nikolai) 1992; 2000; 2004 water polo
(silver/bronze) Nikolay Maksimov (a.k.a. Nikolai) 2000; 2004 water polo
Other Leaders:
1 prime minister
Prime Minister Nikolai Tanayev 2002-2005 Kyrgyzstan
Other Royalty:
1 prince
Nikolai of Denmark 1999-2023 Denmark
Russian Grand Dukes and Tsars:
2 tsars
Tsar Nikolai I 1825-1855
Tsar Nikolai II 1894-1917
Saints:
1 saint
Saint Nikolai II 1868-1918