The Cayo District is a district in the west of the nation of Belize. The District capital is the town of San Ignacio Cayo. Also in the Cayo District are the Belizian national capital of Belmopan, the town of Benque Viejo del Carmen, the villages of San Antonio Cayo Valley of Peace, and Spanish Lookout. Cayo District also contains the Pre-Columbian Maya ruins of Xunantunich, Cahal Pech, and Caracol.
According to the 2000 census, Cayo District had a population of 53,715 people.
