Lenglingen is a lake in the municipality of Lierne in Nord-Trøndelag county, Norway. The lake is fed by the lakes Holden and Gusvatnet, and the water from Lenglingen flows south into the lake Ulen. The village of Sørli lies on the southeastern shore of the lake.

Lenglingen is a lake in the municipality of Lierne in Nord-Trøndelag county, Norway. The lake is fed by the lakes Holden and Gusvatnet, and the water from Lenglingen flows south into the lake Ulen. The village of Sørli lies on the southeastern shore of the lake.