Lanín National Park is a national park of Argentina, located in the Neuquén Province, with forests of diverse tree varieties, mainly Fagaceae and conifers such as the lenga and the Araucaria, many species of which are not found elsewhere in Argentina.
Within the park is located the famous Lanín volcano, with its cone shape and snowy top. It also holds the Huechulafquen, Aluminé, and Lácar lakes among others. In them, and the numerous rivers and streams, sport fishing of salmon and trout is practiced. The animal life of the park is similar to the southern Nahuel Huapi National Park.