Arequipa (Spanish pronunciation: [aɾeˈkipa]; and Quechua: Ariqipa), also known by its nicknames of Ciudad Blanca (Spanish for "White City") and León del Sur (Spanish for "South's Lion"), is a city in Peru and the capital of the eponymous province and department. It is the seat of the Constitutional Court of Peru and often dubbed the "legal capital of Peru". It is the second most populated city in Peru, after the capital Lima, with an urban population of 1,295,700 in 2025. Known for its colonial architecture and volcanic stone buildings, it is a major cultural and economic center.
Its metropolitan area integrates twenty-one districts, including the foundational central area, which it is the seat of the city government. The city had a nominal GDP of US$9,445 million, equivalent to US$10,277 per capita (US$18,610 per capita PPP) in 2015, making Arequipa the city with the second-highest economic activity in Peru.