Ostrovica
Ostrovica may refer to:
- Ostrovica, Croatia, village in Croatia, near Benkovac, in Lišane Ostrovičke municipality
- Ostrovica Fortress, a castle in Croatia
- Ostrovica, Bosnia and Herzegovina, village in Bosnia, near Kulen Vakuf
- Ostrovica Castle, a castle in Bosnia and Herzegovina
- Ostrovica (Niška Banja), village in Serbia, near Niš
- Ostrovica (Rudnik), a castle in Serbia
- Ostrovica, Hrpelje–Kozina, village in Slovenia
- Oštrovica, village in Croatia, near Delnice