The Hushan Dam (traditional Chinese: 湖山水庫; simplified Chinese: 湖山水库; pinyin: Húshān Shuǐkù; Pe̍h-ōe-jī: Ô͘-soaⁿ Chúi-khò͘) is a dam in Douliu City, Yunlin County, Taiwan.

The planning of the dam started already in 1979 and but was approved by Executive Yuan only in 2001.

[1] The stated goals of the dam are to "improve both quantity and quality for the domestic water supply in Yunlin County, reduce abstraction of ground water, slow down subsidence and improve environmental quality".

[6][2] However, the construction was delayed for three times due to environmental and historical site preservation issues.

[1][4] The supply of water from Hushan Reservoir and the nearby Jiji Weir to Yunlin will eventually reach 432,000 tons per day.