Colonia Glacier (Spanish: Glaciar Colonia or Ventisquero Colonia) is a valley glacier located in the Northern Patagonian Ice Field, Chile. The glacier spills out to the southeast from an ice plateau north of Cerro Arenales and has its terminus about 4 km (2.5 mi) from Colonia Lake. Colonia Glacier dams two lakes; Cachet II and Arco Lake.