Šuoikkatjávri

or is a lake in Northern Norway. The 6.44 km2 lake lies in Kvænangen Municipality in Troms county (and the far southern tip of the lake sometimes crosses over slightly into Kautokeino Municipality in Finnmark county. The somewhat S-shaped lake is about 10 km long and is only about 900 m wide. It serves as the reservoir for the Cårrujavrit Hydroelectric Power Station.