Entre Ríos (Spanish: "Between the rivers") is a town in the Bolivian Tarija Department.

It is located at an altitude of 1,230 metres (4,040 ft) at the confluence of Río Tambo and one of its tributaries, 110 kilometres (68 mi) and a three-hour ride east of Tarija, the departmental capital.

The town is bordered by north-southerly mountain ranges and situated in an elongated triangular hollow of 10 kilometres (6.2 mi) length.

Entre Ríos' population at the 2001 census was 2,413[citation needed] and rose to circa 2,800 people in 2007.

[citation needed] The Entre Ríos region is still one of the main settlement areas of the Guaraní people who have inhabited the Paraná Basin for millennia.