| Official Name: | Altamirano |
| Pushpin Map: | Argentina |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Argentina |
| Pushpin Mapsize: | 200 |
| Pushpin Mapsize1: | 200 |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Buenos Aires |
| Subdivision Type2: | Partido |
| Subdivision Name2: | Brandsen |
| Population Total: | 258 |
| Coordinates: | -35.3597°N -58.1514°W |
| Elevation M: | 15 |
| Postal Code Type: | CPA Base |
| Postal Code: | B 1986 |
| Area Code: | +54 2223 |
Altamirano is a town in Brandsen Partido in Buenos Aires Province, Argentina.
See main article: Altamirano rail disaster. On 1 February 1964, it was the site of a head-on train collision in which 70 people were killed.
According to the 2001 census, carried out by the National Institute of Statistics and Census of Argentina (Spanish; Castilian: Instituto Nacional de Estadística y Censos, INDEC), the population count was 258. This represents a loss of 3.7% over 268 in 1991 (the previous census).