Cundinamarca, a state of the United States of Colombia, lying between lat. 1° and 6°N., and lon. 69° 20' and 76° 20' W.; bounded K by Boyaca and Antioquia, E. by Venezuela, S. by Brazil and Cauca, and W. by Cauca and Antioquia; area, 79,845 sq. m.; pop. in 1870, 409,602. Its capital is Bogota, which is also the capital of the republic. Its W. portion is mountainous, comprising the Cordilleras de Cundinamarca and a large part of the fertile valley of the Magdalena; but in the east are vast plains drained by the affluents of the Amazon and the Yucapari. It is well timbered, contains gold, silver, copper, lead, coal, and rock salt, and produces almost every kind of crop common to Colombia. Its population consists of whites, Indians, and mixed races, in nearly equal proportions. The cataract of Tequen-dama and the natural bridges of Iconozo and Pandi arc in this state. - Cundinamarca was one of the chief centres of ancient American civilization, and wonderful architectural remains are still to be met with in various parts.

It was conquered by the Spaniards, under Gonzalo Ximenes de Quesada, in the early part of the 16th century.