Árnafjørður (Danish: Arnefjord) is a town of the municipality of Klaksvík, on the island of Borðoy, in the Faroe Islands.

Árnafjørður is located at the bottom of a deep inlet, named Árnfjarðarvík, "corner fjord's bay", on the east side of Borðoy.

In 1875, an abandoned Norwegian vessel loaded with large amounts of timber drifted ashore at Árnafjørður.

Timber has always been expensive in the Faroes as, other than driftwood, it usually has to be imported.

[1] This Faroe Islands location article is a stub.