| Buenos Aires | |
| Settlement Type: | Municipality and town |
| Mapsize: | 250px |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Colombia |
| Subdivision Type: | Country |
| Subdivision Name: |  Colombia |
| Subdivision Type1: | Department |
| Subdivision Name1: | Cauca Department |
| Area Total Km2: | 410 |
| Population As Of: | 2020 est.[1] |
| Population Total: | 35197 |
| Timezone: | Colombia Standard Time |
| Utc Offset: | -5 |
| Elevation M: | 2313 |
| Blank Name: | Climate |
| Footnotes: | [2] |
Buenos Aires is a town and municipality in the Cauca Department, Colombia.[2] Founded in by Vasco de Guzmán and Alonso de Fuenmayor in 1551, the municipality covers an area 520km2 and has a population of 21,300.[2] The population is primarily engaged in agriculture and ranching.[2]