Namesakes
Norwegian Kings and Queens:
2 kings
King Oskar I 1844-1859 
King Oskar II 1872-1905
Notable Artists:
1 painter
Oskar Kokoschka 1886-1980
Notable Businesspeople:
1 businessperson
Oskar Schindler 1908-1974
Olympic Medalists:
2 bronze, 1 bronze/silver/gold, 1 gold
(bronze/silver/gold) Albin Stenroos (a.k.a. Oskar) 1912; 1924 10000 m; cross country team; marathon
(bronze) Tuomas Grönman (a.k.a. Oskar) 1998 ice hockey
(gold) Oskar Deecke 2012 field hockey
(bronze) Oskar Eriksson 2014 curling
Other Royalty:
1 prince
Oskar of Prussia 1888-1958 Prussia