Osøyro is the administrative centre of Bjørnafjorden Municipality in Vestland county, Norway. It is situated on the southwestern part of the Bergen Peninsula along the western shore of the Fusafjorden.
The village is located approximately 25 kilometres south of the city centre of Bergen. The European route E39 highway passes through Osøyro, and a car ferry connects the eastern side of the village to the village of Fusa across the Fusafjorden. Os Church is also located within the village.