The Liyu Lake or Carp Lake (traditional Chinese: 鯉魚潭; simplified Chinese: 鲤鱼潭; pinyin: Lǐyú Tán) is a lake in Chinan Village, Shoufeng Township, Hualien County, Taiwan.

Liyu means carp in English where by the name, the lake has a lot of carps. The name itself originated from the Liyu Mountain beside the lake.

The lake is about 1.6 km in length and 930 meters in width, making it the largest inland lake in Hualien County with a total area of 104 hectares. The lake is located at the foot of Mount Liyu.

After the development of the lake into a scenic spot, the lake becomes the site of various recreational activities, such as light boat sailing, water sports, etc. It has single lane bicycle path around 5 km encircling the lake and footpaths for strolling along the shore. The Chinan National Forest Recreation Area (Chinese: 池南國家森林遊樂區) and Mukumugi (Chinese: 慕谷慕魚) surrounding the lake displays the old logging trains and the logging displays and aboriginal culture respectively. Every year in April, thousand of fireflies flash above the lake.

The lake is accessible by bus towards Shoufeng from Hualien Station of Taiwan Railways.