Kornstad is a former municipality in Møre og Romsdal county, Norway.

During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee.

On 1 January 1964, the mainland district of Vevang (population: 562) was transferred into the neighboring Eide Municipality and the rest of Kornstad (population: 1,356) was merged into the newly created Averøy Municipality.

It may come from the old male name Korni or it could be a shortened version of íkorni which means "squirrel".

[5] The municipal council (Herredsstyre) of Kornstad was made up of representatives that were elected to four year terms.