Folda[1] is a firth and a fjord in Trøndelag county, Norway.

The narrower fjord part of Folda is often called the Foldfjorden or Innerfolda.

Most of the fjord is very narrow, some places with steep cliffs.

It has the largest length to width factor among Norway's fjords.

The outer-Folda area is notorious for its rough seas and has been called an "ocean graveyard" (Norwegian: havets kirkegård).