Brekkvasselv is a village in the municipality of Namsskogan in Nord-Trøndelag county, Norway. It is located along the river Namsen about southwest of the village of Namsskogan and about northeast of Trones. The village sits at the intersection of European Route E6 and Norwegian County Road 773 which heads east towards Røyrvik. The Nordlandsbanen railway line also runs through the village, stopping at Brekkvasselv Station.