Beiar Fjord (Norwegian: Beiarfjorden is a fjord in Nordland, Norway, mostly within the municipality of Beiarn. It has a length of about 20 kilometers (12 mi). The 54-kilometer (34 mi) Beiar River debouches into the head of Beiar Fjord.
Coordinates: 67°04′09″N 14°31′58″E / 67.06917°N 14.53278°E