Ottersøya[3] is a village in Nærøysund Municipality in Trøndelag county, Norway.

The village is located at the southwestern end of the Kvingra peninsula, just across the Nærøysundet from the town of Rørvik.

Important workplaces on Ottersøya besides trade and service are Nærøysund Kraftbetong A/S, Noprec - Containerservice Ottersøya and Mekon AS.

In Ottersøya there is a large dry dock owned by Moen Slipp.

The village of Torstad lies about 6 kilometres (3.7 mi) north of Ottersøya.