Peruvian Ribereño Spanish or Peruvian Coastal Spanish is the form of the Spanish language spoken in the coastal region of Peru. The Spanish spoken in Coastal Peru has four characteristic forms today: the original one, that of the inhabitants of Lima (known as limeños) near the Pacific coast and parts south, (formerly from the old section of the city from where it spread to the entire coastal region); the inland immigrant sociolect (more influenced by Andean languages); the Northern, in Trujillo, Chiclayo or Piura; and the Southern. The majority of Peruvians speak Peruvian Coast Spanish, as Peruvian Coast Spanish is the standard dialect of Spanish in Peru.

Between 1535 and 1739, Lima was the capital of the Spanish Empire in South America, from where Hispanic culture spread, and its speech became the "purest" since it was the home of the famous University of San Marcos of Lima. Also, it was the city that had the highest number of titles of nobility from Castile outside of Spain. Colonial people in Lima became used to living an ostentatious and courtly life style that people in the other capital cities of Spanish America did not experience, with the exception of Mexico City and later the city of Bogotá. On the other hand, they mostly lived from the riches extracted from the inland mines by the Native Peruvians.