Liberia is a district and the largest city in the Guanacaste Province of Costa Rica, located 215 kilometres (134 mi) northwest of the national capital, San José, in the canton with the same name, of which it is the head city or capital. It is a major center for the country's tourism industry.

Liberia has been nicknamed la ciudad blanca (the white city) due to the white gravel that was once used to make the city's roads and the whitewashed colonial houses which used to make up a large part of the city.