Ostrovo may refer to:
*Arnissa, a town in Greece formerly called Ostrovo
* Ostrovo, Croatia, a village near Markušica, Vukovar-Syrmia County, Croatia
*Ostrovo, Veliko Gradište, a village in Serbia
*Ostrovo, Požarevac, a village in Serbia
*Ostrovo (island), a river island in Serbia
*Ostrovo, Bulgaria, a village in Razgrad Province, Bulgaria
*Ostrovo (Skopje), a part of Skopje, Macedonia
* Lake Ostrovo or Lake Vergoritis in Macedonia, northern Greece
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