Puerto Octay is a town and commune in Osorno Province located on the north shore of Llanquihue Lake in Los Lagos Region in the south of Chile.

[6] Puerto Octay currently has a rich and varied architecture, mostly built of wood, which is the historical reflection of the colonization process, driven by the State of Chile in the mid-nineteenth century, with families coming from Germany.

According to the 2002 census of the National Statistics Institute, Puerto Octay spans an area of 1,795.7 km2 (693 sq mi) and has 10,236 inhabitants (5,391 men and 4,845 women).

[2] As a commune, Puerto Octay is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years.

The commune is represented in the Senate by Camilo Escalona Medina (PS) and Carlos Kuschel Silva (RN) as part of the 17th senatorial constituency (Los Lagos Region).