Apavatn is a lake in southwest Iceland. With a surface area of around 13 km² it is slightly larger than the neighbouring lake of Laugarvatn, which lies to the north of Apavatn.

Apavatn is a lake in southwest Iceland. With a surface area of around 13 km² it is slightly larger than the neighbouring lake of Laugarvatn, which lies to the north of Apavatn.