Fyresvatn

Fyresvatn
Location	Fyresdal, Telemark
Coordinates	59°06′N 8°12′E / 59.100°N 8.200°E / 59.100; 8.200Coordinates: 59°06′N 8°12′E / 59.100°N 8.200°E / 59.100; 8.200
Primary outflows	Fyreselv
Basin countries	Norway
Surface area	49.63 km²
Max. depth	377 m
Shore length1	63.41 km
Surface elevation	279 m
1 Shore length is not a well-defined measure.

Fyresvatn, or Fyresvatnet, is the fifth-deepest lake in Norway with a depth of 377 metres (1,237 ft).

It is located in Fyresdal municipality, part of Telemark county.

Fyresvatn belongs to the Arendal watershed, and discharges via the Fyreselv river into the Nidelva river, which flows into the Skagerrak at Arendal in the county of Aust-Agder.