Inna is a river that flows through the municipality of Verdal in Nord-Trøndelag county, Norway. The river begins in the east at the lake Innsvatnet, located near the border to Sweden, and it runs west to Vuku at the confluence of the rivers Inna and Helgåa, which together become the river Verdalselva. The river Inna runs through the Inndalen valley, through the villages of Sul, Garnes, Holmen, and ends at Vuku.