Ostrovo (Serbian Cyrillic: Острово) is village in Croatia, municipality Markušica, Vukovar-Syrmia County.
Branch school of Elementary school Markušica is located in Ostrovo. Education at local school in is implemented in Serbian language.
During the war in Croatia Ostrovo was within self-proclaimed Serb political entity SAO Eastern Slavonia, Baranja and Western Syrmia. In the final stages of conflict United Nations Mission conducted peaceful reintegration this region into Croatian jurisdiction.