Kecmanović () is a Serbo-Croatian surname. Notable people with the surname include:
Miomir Kecmanović (born 1999), Serbian tennis player Nenad Kecmanović (born 1947), Bosnian Serb political scientist, sociologist, political analyst, publicist and retired politician Vojislav Kecmanović (1881–1961), first President of the Republic of Bosnia and Herzegovina Kosta Kecmanović (born 2009), Belgrade mass shooter