Straumsnes is a former municipality in Møre og Romsdal county, Norway.
On 1 January 1868, an uninhabited district of Halsa Municipality was transferred to Straumsnes.
During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee.
On 3 November 1917, a royal resolution changed the spelling of the name of the municipality to Straumsnes, changing the vowel spelling and removing the definite form ending -et.
[7] The municipal council (Herredsstyre) of Straumsnes was made up of 17 representatives that were elected to four year terms.