Essunga Municipality (Essunga kommun) is a municipality in Västra Götaland County in western Sweden. Its seat is located in the town of Nossebro.The 1952 municipal reform in Sweden saw the creation of Essunga Municipality out of eight original entities. In 1974 it was dissolved and part of Vara Municipality up until 1983, when it was reestablished within the boundaries of 1952.