Siksjøen
Siksjøen Location of the lake Show map of Innlandet Siksjøen Siksjøen (Norway) Show map of Norway
Location	Os Municipality, Innlandet
Coordinates	62°19′47″N 11°37′9″E / 62.32972°N 11.61917°E / 62.32972; 11.61917
Primary inflows	Holleva river
Primary outflows	Tufsinga river
Basin countries	Norway
Max. length	6 kilometres (3.7 mi)
Max. width	600 metres (2,000 ft)
Surface area	2.69 km2 (1.04 sq mi)
Shore length1	13.72 kilometres (8.53 mi)
Surface elevation	708 metres (2,323 ft)
References	NVE
1 Shore length is not a well-defined measure.

Siksjøen is a lake in the municipality of Os in Innlandet county, Norway. The 2.69-square-kilometre (1.04 sq mi) lake is located in the Tufsingdalen valley in the southeastern part of the municipality, about 25 kilometres (16 mi) southeast of the village of Os.^[1]

• List of lakes in Norway