Colbún (Mapudungun: "Cleaning of the land") is a Chilean town and commune in Linares Province, Maule Region.

According to the 2002 census of the National Statistics Institute, Colbún spans an area of 2,899.9 km2 (1,120 sq mi) and has 17,619 inhabitants (8,943 men and 8,676 women).

[8] Colbún is administered by Mayor Pedro Pablo Muñoz (Independent), who has been elected for the period 2021-2024, and the Municipal Council is composed of: Within the electoral divisions of Chile, Colbún is represented in the Chamber of Deputies by Jorge Tarud (PDC) and Romilio Gutiérrez (UDI) as part of the 39th electoral district, together with Linares, San Javier, Villa Alegre and Yerbas Buenas.

The commune is represented in the Senate by Hernán Larraín (UDI) and Ximena Rincón González (PDC) as part of the 11th senatorial constituency (Maule-South).

In addition, the municipality concentrates the hydroelectric industry of the province, with the important power stations of Colbún and Machicura.