Baldwin II may refer to:

Baldwin II of Flanders ( 865–918) Baldwin II of Boulogne ( 990– 1033) Baldwin II, Count of Hainaut (1056–1098) Baldwin II of Jerusalem, King of Jerusalem (died 1131) Baldwin II of Constantinople, Latin Emperor of Constantinople (1217–1273)

de:Liste der Herrscher namens Balduin#Balduin II.