Afritzer See is a lake of Carinthia, Austria.

The lake is situated in the Gegendtal Valley, running from east to west through the Nock Mountains range of the Gurktal Alps.

Though the named after the settlement of Afritz on the eastern shore, the water is located within the municipal area of neighbouring Feld am See.

A drainage divide separates it from the neighbouring Brennsee lake.

It is a popular bathing lake in summer, two public lidos and a camping site are located on the southern shore.