Ostrov nad Oslavou is a market town in Žďár nad Sázavou District in the Vysočina Region of the Czech Republic.

Ostrov nad Oslavou consists of two municipal parts (in brackets population according to the 2021 census):[2] Ostrov nad Oslavou is located about 9 kilometres (6 mi) south of Žďár nad Sázavou and 30 km (19 mi) east of Jihlava.

The market town is situated on the Oslava River, at its confluence with the stream Bohdalovský potok.

In 1960, Suky was joined to Ostrov nad Oslavou.

[7] The main landmark is the Church of Saint James the Great.