Laq'a Jawira (Aymara laq'a earth (soil), jawira river, "earth river"; hispanicized spellings: Laca Jahuira / Lacajahuira) is a river in Bolivia which runs from Lake Poopó. Its length is entirely within the territory of Oruro Department. It runs from the extreme south-west of the lake, and heads west-south-west. It has a length of 135 kilometres, after which it is lost in the salar de Coipasa. Its waters are salty at the point at which it meets the lake.