Kloštar may refer to:

Kloštar, Istria County, a village near Vrsar, Croatia Kloštar Ivanić, a village and municipality in Zagreb County, Croatia Kloštar Podravski, a village and municipality in Koprivnica-Križevci County, Croatia Kloštar Vojakovački, a village near Križevci, Croatia

See also Pavlin Kloštar Klošter