Namesakes
Hungarian Kings and Queens:
5 kings
King István I 997-1038 
King István II 1114-1131
King István IV 1163
King István III 1161-1162; 1163-1172
King István V 1270-1272
Hungarian Presidents and Prime Ministers:
4 prime ministers, 1 prime minister/president
Prime Minister István Bittó 1874-1875
Prime Minister István Tisza 1903-1905; 1913-1917
Prime Minister István Friedrich 1919
Prime Minister István Bethlen 1921-1931
Prime Minister/President István Dobi 1948-1949; 1949-1952; 1952-1967
Notable Actors and Entertainers:
1 actor
Bill Skarsgård (middle name Istvan) 1990-
Notable Artists:
1 painter
István Sándorfi 1948-2007
Notable Politicians and Statespeople:
1 politician
István Széchenyi 1791-1860
Olympic Medalists:
3 bronze, 3 gold, 3 silver, 2 silver/gold, 1 bronze/silver/gold, 1 gold/bronze, 1 silver/bronze
(silver) István Somodi 1908 high jump
(silver/gold) István Barta 1928; 1932 water polo
(silver/bronze) István Bárány 1928; 1932 swimming - 100 m freestyle; swimming - 4x200 m freestyle relay
(gold) István Molnár 1936 water polo
(gold) István Hasznos 1952 water polo
(silver/gold) István Szívós 1948; 1952; 1956 water polo
(bronze) István Rózsavölgyi 1960 1500 m
(gold/bronze) István Hevesi 1956; 1960 water polo
(bronze/silver/gold) István Szívós 1968; 1972; 1976; 1980 water polo
(silver) István Görgényi 1972 water polo
(silver) István Magas 1972 water polo
(bronze) István Kiss 1980 water polo
(bronze) István Udvardi 1980 water polo
(gold) István Gergely 2004; 2008 water polo
Saints:
1 saint
Saint Stephen I of Hungary (a.k.a. István) c. 975-1038