Bjørnafjorden is a
fjord in
Hordaland county,
Norway. It runs through the municipalities of
Austevoll,
Fusa,
Os, and
Tysnes. The large island of
Tysnesøya (and many small, surrounding islands such as
Reksteren) lie along the south side of the Bjørnafjorden and the
Bergen Peninsula and the mainland lie along the north and east sides of the fjord. The
Fusafjorden (and the
Samnangerfjorden which branches off it) split off from the main fjord on the north side by the village of
Osøyro. The fjord is about wide and its maximum depth is below sea level.