| Official Name: | San Andrés Villa Seca |
| Settlement Type: | Municipality |
| Subdivision Type: | Country |
| Subdivision Name: | Guatemala |
| Subdivision Type1: | Department |
| Subdivision Name1: | Retalhuleu |
| Area Total Km2: | 451 |
| Population As Of: | 2018 census |
| Population Footnotes: | [1] |
| Population Total: | 47820 |
| Population Density Km2: | auto |
| Population Urban: | 11763 |
San Andrés Villa Seca is a town and municipality in the Retalhuleu Department of Guatemala.