The Valparaíso Region (Spanish: Región de Valparaíso, pronounced [valpaɾaˈiso]) is one of Chile's 16 first order administrative divisions. With the country's second-highest population of 1,896,053 as of 2024, and fourth-smallest area of 16,396.1 km (6,331 sq mi), the region is Chile's second most densely populated after the Santiago Metropolitan Region to the southeast. The region also includes Chile's remote islands of the Pacific Ocean, including Rapa Nui and the Juan Fernandez Islands.
Its capital is the port city of Valparaíso; other important cities include Viña del Mar, Quillota, San Felipe, Quilpué, Villa Alemana, and San Antonio.