Valsøyfjord is a former municipality that was located in Møre og Romsdal county, Norway.

[9] The municipality (originally the parish) is named after the local Valsøyfjorden (Old Norse: Vallangr).

On 3 November 1917, a royal resolution changed the spelling of the name of the municipality to Valsøyfjord, adding a "y" and removing the definite form ending -en.

At the time of the municipal dissolution, it was part of the Aure prestegjeld and the Sør-Fosen prosti (deanery) in the Diocese of Nidaros.

The municipality surrounded the Valsøyfjorden as well as land on Ertvågøya on the north side of the Arasvikfjorden.

The municipal council (Heradsstyre) of Valsøyfjord was made up of 17 representatives that were elected to four year terms.