Tongoy is a Chilean coastal town in the commune of Coquimbo in Elqui Province, Coquimbo Region. It is located 42 km (26 mi) to the south of Chile's second oldest city, La Serena, next to the spa of Guanaqueros, on a rocky promontory opposite the Pacific Ocean, between the beaches of Socos (4 km) and Grande (26 km), to the north of the Talinay Mountain range.
The town's name comes from the word Tongoy which in Mapudungún means "hammer strikes". The first inhabitants of the Tongoy area were the Diaguitas and the Changos. Over many years the Diaguitas exploited the rich copper deposits of the region, mining, making tools and all manner of implements from the metal. They also were industrious farmers and developed agriculture throughout the territory.