The Costa del Sol ("Sun Coast" or, more literally, "Coast of the Sun") is a region in the south of Spain, in the autonomous community of Andalusia, comprising the coastal towns and communities along the Mediterranean coastline of the Málaga province. The Costa del Sol is situated between two lesser known costas: Costa de la Luz and Costa Tropical. Formerly made up only of a series of small, quiet fishing settlements, the region has been completely transformed during the latter part of the 20th century into a tourist destination of world renown.

It includes the city of Málaga,and the towns of Torremolinos, Benalmádena, Fuengirola, Mijas, Marbella, San Pedro de Alcántara, Estepona, Manilva, Vélez-Málaga, Rincon de la Victoria, Nerja, Torrox.

Historically its population lived in the fishing villages, and in the "white" villages a little distance inland, in the mountains running down to the coast. The area was discovered and developed to meet the demands of international tourism in the 1950s and has since been a popular destination for foreign tourists not only for its beaches but also for its local culture. The area is particularly famous for its towns like Marbella, which provides the Costa del Sol with its reputation for being a playground for its super-rich and famous visitors.

The Costa del Sol is a popular tourist region that welcomes millions of people annually, who mostly arrive at Malaga airport and head to one of the many resorts located along this stretch of coastline from Gibraltar in the west to Nerja in the east.