Acar ([ˈadʒaɾ]) is a Turkish surname. Notable people with the surname include:
Denho Acar (born 1974), Turkish mobster
İsmail Acar (born 1971), Turkish painter
Numan Acar (born 1974), Turkish-German actor and film producer
Onur Acar (born 1983), Turkish footballer
Reyhan Acar (born 1992), Turkish female water polo player
Serkan Acar (1948–2013), Turkish football player
Tolgahan Acar (born 1986), Turkish footballer
Veli Acar (born 1981), Turkish footballer