Kanas Lake (Chinese: 喀纳斯湖; pinyin: Kānàsī Hú, Xiao'erjing: كَانَاسِ خٗ; Mongolian: Ханас нуур; Uyghur: قاناس كۆلى, romanized: Qanas köli, UYY: Ⱪanas köli, USY: Қанас Көли) is a lake in Altay Prefecture, Xinjiang, China.

The lake is located in a valley in the Altai Mountains, near the very northern tip of Xinjiang and the autonomous region's borders with Russia, Kazakhstan and Mongolia.

While most of these people have maintained their traditional agricultural and nomadic life styles, many work in the developing tourism industry and have established facilities for orienteering, hiking, rafting, rock climbing, paragliding and camping.

First efforts in research of these legends were done by Yuan Guoying of Xinjiang University, who observed fish of enormous size in 1985.

He and his students assessed that the fish could be 10 – 15 m long and weigh more than 4 tons, with total population in excess of 50 individuals.