The Cochabamba Water War, also known as the Bolivian Water War, was a series of protests that took place in Cochabamba, Bolivia's fourth largest city, between December 1999 and April 2000 in response to the privatization of the city's municipal water supply company SEMAPA.

Cochabamba, from Quechua qucha or qhucha, meaning "lake", pampa meaning "plain",Diccionario Bilingüe Iskay simipi yuyayk'ancha pdf is one of the nine departments of Bolivia.