Namesakes
Fictional Characters from Traditional Tales:
1 character
Santa Claus (a.k.a. Nikolaos) European 
Greek Prime Ministers:
5 prime ministers
Nikolaos Deligiannis 1895
Nikolaos Kalogeropoulos 1916; 1921
Nikolaos Stratos 1922
Nikolaos Triantafyllakos 1922
Nikolaos Plastiras 1945; 1950; 1951-1952
Hall-of-Famers:
1 basketball
(basketball) Nikos Galis 2017
Notable Athletes:
2 soccer, 1 basketball
(basketball) Nikos Galis 1957-
(soccer) Nikolaos Karabelas 1984-
(soccer) Nikolaos Karelis 1992-
Olympic Medalists:
1 bronze, 1 gold
(bronze) Nikolaos Georgantas 1904 discus throw
(gold) Nikolaos Siranidis 2004 diving - synchronized springboard
Saints:
1 saint
Saint Nicholas (a.k.a. Nikolaos) 270-343