The Chixoy River or RÃÂo Chixoy is a river in Guatemala. The river is called RÃÂo Negro from its sources in the highlands of Huehuetenango and El Quiché until it reaches the Chixoy hydroelectric dam (located at ), where the RÃÂo Salamá and Rio Carchela converge with the RÃÂo Negro. After the Chixoy dam, the river is called RÃÂo Chixoy and flows northwards, marking the departmental limits between Alta Verapaz and El Quiché, until it reaches the border with Mexico. It continues along the border for another as the Salinas river until it finally converges with the RÃÂo la Pasión (at ) to form the Usumacinta river which flows into the Gulf of Mexico.
The Chixoy river's water discharge of is Guatemala's highest. This was one of the main reasons for selecting this river for the construction of the Chixoy Hydroelectric dam. Guatemala's National Institute for Electricity (INDE) is planning the construction of another hydroelectric dam on the Chixoy river. The proposed location of the Xalalá hydroelectric dam is situated at . in the municipality of Ixcán, El Quiché.