Namesakes
Islamic Caliphs:
3 caliphs
Caliph Selim I 1517-1520 Ottoman 
Caliph Selim II 1566-1574 Ottoman
Caliph Selim III 1789-1807 Ottoman
Olympic Medalists:
1 bronze/gold
(bronze/gold) Veli Saarinen (a.k.a. Selim) 1932 cross-country skiing
Other Leaders:
1 prime minister
Prime Minister Salim al-Huss (a.k.a. Selim) 1976-1980; 1987-1990; 1998-2000 Lebanon
Ottoman Sultans:
3 sultans
Sultan Selim I 1512-1520
Sultan Selim II 1566-1574
Sultan Selim III 1789-1807