Junín de los Andes is a first category municipality and administrative center of the Huiliches Department in the province of Neuquén, Argentina. It is located in the south of the province, by the Chimehuin River, on National Route 40, about 35 km north of San Martín de los Andes and 17 km from the Chapelco Airport, which services the area. Founded in 1883 as a fortress during the Conquest of the Desert, it is the oldest town in the province. It developed as a cattle border town.