| Subdivision Name2: | Pernambuco |
| Utc Offset: | -3 |
| Population Demonym: | buenairense |
| Population Density Km2: | auto |
| Pop Est As Of: | 2020 |
| Population Est: | 13190 |
| Population As Of: | 2010 |
| Population Total: | 12537 |
| Elevation M: | 149 |
| Area Total Km2: | 96.69 |
| Subdivision Name1: | Northeast |
| Subdivision Type2: | State |
| Subdivision Type1: | Region |
| Subdivision Name: | Brazil |
| Subdivision Type: | Country |
| Pushpin Map Caption: | Location in Brazil |
| Coordinates: | -7.7258°N -35.3269°W |
| Pushpin Map: | Brazil |
| Timezone1: | BRT |
Buenos Aires is a city located in the state of Pernambuco, Brazil. Located 78 km from the state capital of Recife, it has an estimated (IBGE 2020) population of 13,190 people.[1]
The main economic activities in Buenos Aires are based in industry, commerce and agribusiness, especially sugarcane, bananas; and livestock such as poultry and cattle.