Namesakes
Nobel Prize Winners:
1 chemistry, 1 physics
(chemistry) Nikolay Semyonov 1956 
(physics) Nikolay Basov 1964
Notable Evildoers:
1 persecutor
Nikolai Yezhov (a.k.a. Nikolay) 1895-1940
Notable Explorers and Adventurers:
1 explorer
Nikolay Przhevalsky 1839-1888
Notable Philosophers and Thinkers:
1 historian
Nikolay Karamzin 1766-1826
Notable Scientists and Inventors:
2 physicists
Nikolay Semyonov 1896-1986
Nikolay Basov 1922-2001
Olympic Medalists:
7 bronze, 3 gold, 2 silver, 2 silver/bronze, 1 silver/bronze/gold
(silver) Nikolay Sokolov 1960 3000 m steeplechase
(bronze) Nikolai Kuznetsov (a.k.a. Nikolay) 1964 water polo
(bronze) Nikolay Kalashnikov 1964 water polo
(bronze) Nikolay Smaga 1968 20 km walk
(bronze) Nikolay Kolesnikov 1976 4x100 m relay
(gold) Nikolay Sidorov 1980 4x100 m relay
(bronze) Nikolay Kirov 1980 800 m
(bronze) Nikolay Deryugin 1980 basketball
(gold) Nikolay Chernetskiy 1980 4x400 m relay
(silver) Nikolai Yevseyev (a.k.a. Nikolay) 1988 swimming - 4x100 m freestyle relay
(silver/bronze/gold) Nikolaj Pešalov (a.k.a. Nikolay) 1992; 1996; 2000; 2004 weightlifting
(silver/bronze) Nikolay Kozlov 1992; 2000; 2004 water polo
(silver/bronze) Nikolay Maksimov 2000; 2004 water polo
(gold) Nikolay Apalikov 2012 volleyball
(bronze) Nikolay Kovalev 2012 fencing
Other Royalty:
4 grand dukes, 1 prince
Nicholas Nikolaevich of Russia (a.k.a. Nikolay) 1831-1891 Russia
Nicholas Alexandrovich, Tsarevich of Russia (a.k.a. Nikolay) 1843-1865 Russia
Nicholas Konstantinovich of Russia (a.k.a. Nikolay) 1850-1918 Russia
Nicholas Nikolaevich of Russia (a.k.a. Nikolay) 1856-1917 Russia
Nicholas Mikhailovich of Russia (a.k.a. Nikolay) 1859-1917 Russia