Puerto Cisnes is a town and seaport in Cisnes commune, Aisén Province, Aisén Region in the Chilean Patagonia. The town is located at the outflow of Cisnes River. The town is located in the northwestern portion of the Aisén Region, an area that includes numerous islands, fjords and channels.
The major island is Magdalena Island, which contains the national park that bears its name. Queulat National Park straddles the border between this commune and Lago Verde. Much of the commune area is covered with a lush vegetation and is divided by the Moraleda Channel. The main mountain of the area is Melimoyu volcano.