The region of Libertador General Bernardo O'Higgins, also called simply O'Higgins region, is one of the sixteen regions in which the Republic of Chile is divided. Its capital is Rancagua. Located in the center of the country, it borders to the northwest with the Valparaíso Region, to the northeast with the Metropolitan Region of Santiago, to the east with Argentina, to the south with the Maule Region and to the west with the Pacific Ocean. The name of the region was established in honor of Bernardo O'Higgins, considered a liberator and father of the country in the country. It has an area of 16 387 km² and a population of 914 555 inhabitants in 2017.
The region is composed of the provinces of Cachapoal, Cardenal Caro and Colchagua, and the regional capital is the city of Rancagua. Its main urban center is the Gran Rancagua with 294 279 inhabitants, followed by San Fernando with 73 973 inhabitants.