Snåsavatnet is Norway's 6th largest lake, with an area of approximately . The surface is only above sea level. Snåsavatnet is located in the municipalities of Steinkjer and Snåsa in Nord-Trøndelag county, Norway. The villages of Følling and Sunnan lie at the southwestern end of the lake and the village of Snåsa lies at the northeastern end of the lake. The European route E6 highway runs along the northern shore of the lake and the Nordlandsbanen railway runs along the southern shore.