Guijiahu Reservoir () is a reservoir located in Zhenning Buyei and Miao Autonomous County, Guizhou, China. It covers a total surface area of and has a storage capacity of some of water.
Etymology It is called Guijiahu Reservoir due to the dam is located in the Guijiabao Village of Guijia Township ().
History Construction of the reservoir began in 1958 and were completed in 1966.
Function The reservoir provide water for irrigation, hydroelectric power and recreational activities.
Dam The dam is high, long, and thick, and was completed in 1998.
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