| Settlement Type: | town |
| Official Name: | Cerro San Antonio |
| Mapsize: | 200px |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Type2: | Department |
| Subdivision Name: | Colombia |
| Subdivision Name1: | Caribbean |
| Leader Title: | Mayor |
| Established Title: | Foundation |
| Established Date: | 1750 |
| Population As Of: | 2005 |
| Population Note: | [1] |
| Population Total: | 8058 |
| Utc Offset: | -5 |
| Website: | www.cerrosanantonio-magdalena.gov.co |
Cerro San Antonio is a town and municipality of the Colombian Department of Magdalena. Founded on June 13, 1750 by Fernando de Mier y Guerra near the Magdalena River. The Libertador Simon Bolivar visited this town on May 23, 1813 during the War of Independence of Colombia from Spain.