| Settlement Type: | Town |
| Official Name: | Dolores |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize1: | 200 |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Buenos Aires |
| Subdivision Type2: | Partido |
| Subdivision Name2: | Dolores |
| Established Title: | Founded |
| Established Date: | 21 August 1817 |
| Population Total: | 25940 |
| Population Density Km2: | auto |
| Coordinates: | -36.3167°N -97°W |
| Elevation M: | 6 |
| Postal Code Type: | CPA Base |
| Postal Code: | B 7100 |
| Area Code: | +54 2245 |
Dolores is a town in Buenos Aires Province, Argentina. It is the administrative centre for Dolores Partido.The town settlement was officially founded by Ramón Lara on 21 August 1817.
On March 9, 2008 an intercity bus from the company El Rápido Argentino collided with a Ferrobaires passenger train with 250 passengers on board at a level crossing on the Provincial Highway 63 on the outskirts of Dolores, killing seventeen people and injuring at least twenty-five. The bus driver disregarded the railroad crossing signals, which at the time of the accident were operating properly.[1]
Dolores has an Oceanic climate (Köppen Cfb) closely bordering on a Humid subtropical climate (Köppen Cfa).