The Jiji Weir (traditional Chinese: 集集攔河堰; simplified Chinese: 集集拦河堰; pinyin: Jíjí Lán Héyàn) is a weir located in Nantou County, Taiwan.

The construction of the weir started in July 1990 and completed in December 2001.

[1] The weir features the Taiwan Water Museum (Chinese: 臺灣水資源館; pinyin: Táiwān Shuǐ Zīyuán Guǎn) within Jiji Township border.

The weir is accessible southwest of Jiji station of Taiwan Railways.

This article about a building or structure in Taiwan is a stub.