Rocha is a department in the east of Uruguay. Its capital is the city of Rocha. It borders Maldonado Department to its west, Lavalleja Department to its northwest, Treinta y Tres Department to its north, while to its northeast Laguna Merín forms part of its border with Brazil and at the south end of the lake it also borders the southernmost end of Brazil, with the city of Chuy "shared" between both countries, the border passing through its main commercial avenue.

Rocha is the capital city of the Rocha Department in Uruguay.