Sørfolda (Norwegian) or Oarjje-Fuolldá (Lule Sami)[1] is a fjord in Nordland county, Norway.

The 40-kilometre (25 mi) Sørfolda is a southeastern branch of the main Folda fjord.

Side branches include the Nevelsfjorden, Eidekjosen, Skjunkfjorden, and Leirfjorden.

The deepest part of the fjord reaches 573 metres (1,880 ft) below sea level.

The European route E06 runs along parts of the eastern shore of the fjord.