Melhus is a village and municipality in Sør-Trøndelag county, Norway. It is part of the Gauldalen region. The administrative centre of the municipality is the village of Melhus. Other villages include Gimse, Gåsbakken, Hovin, Korsvegen, Kvål, Ler, and Lundamo.Agriculture is important in Melhus, and the extensive lowland areas in the almost flat valley surrounding the Gaula River are dominated by grain fields.