| Official Name: | Tristán Suárez |
| Pushpin Map: | Argentina Greater Buenos Aires |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Greater Buenos Aires |
| Pushpin Mapsize: | 240 |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Buenos Aires |
| Subdivision Type2: | Partido |
| Subdivision Name2: | Ezeiza |
| Established Title: | Founded |
| Established Date: | July 16, 1885 |
| Population Total: | 27,746 |
| Coordinates: | -34.8667°N -92°W |
| Elevation M: | 12 |
| Postal Code Type: | CPA Base |
| Postal Code: | B 1806 |
| Area Code: | +54 11 |
Tristán Suárez is a town in the Ezeiza Partido. Buenos Aires Province, Argentina. It forms part of the Greater Buenos Aires urban conurbation.
The town used to be called Llavallol but it was renamed in homage to railway pioneer Tristán Suárez.
The town is home to football club C.S.D. Tristán Suárez, who play in the lower leagues of Argentine football.