Namsskogan is a village and municipality in Nord-Trøndelag, Norway. Namsskogan is located in the upper part of the long Namdalen valley region. The administrative centre of the municipality is the village of Namsskogan. Other villages in the municipality include Brekkvasselv, Smalåsen, Skorovatn, and Trones.
The village of Namsskogan lies along the river Namsen in the northern part of the municipality. The European route E6 highway runs through the village.The municipality of Namsskogan was established on 1 July 1923 when it was separated from the large municipality of Grong. Initially, the population of Namsskogan was 469. The municipal boundaries have not changed since.The name was created in 1923. The first element is the name of the river Namsen and the last element is the plural form of skog which means "wood". Therefore the meaning of the name is "the woodlands around Namsen".