Chiclayo (Spanish pronunciation: [tʃiˈklaʝo]) is the capital city of the Lambayeque region in northern Peru. It is located 13 kilometers inland from the Pacific coast and 770 kilometers from the nation's capital, Lima. As of 2011, Chiclayo is the fourth most populous city in Peru with a population of 629,990 (comprising 6 contiguous urban districts: Chiclayo, José Leonardo Ortiz, La Victoria, Pomalca, Reque and Pimentel) and the third largest metropolitan area of Peru.

Founded by Spanish explorers as "Santa María de los Valles de Chiclayo" in the 16th century, it was declared a city on 15 April 1835 by president Felipe Santiago Salaverry. He named Chiclayo "the Heroic City" to recognize the courage of its citizens in the fight for independence, a title it still holds. Other nicknames for Chiclayo include "The Capital of Friendship" and the "Pearl of the North".

Currently, Chiclayo is one of the most important urban areas of Peru. It is now the country's fourth-largest city, after Lima, Arequipa, and Trujillo. The city has a population of 738,000, while the metropolitan area has a population of 972,713 (2009 - World-Gazetteer.com).