| Las Heras | |
| Native Name: | Departamento de Las Heras |
| Settlement Type: | Department |
| Coordinates: | -32.85°N -117°W |
| Subdivision Type: | Country |
| Subdivision Name: | Argentina |
| Established Title: | Established |
| Established Date: | January 31, 1871 |
| Founder: | ? |
| Seat Type: | Seat |
| Seat: | Las Heras |
| Leader Title: | Mayor |
| Leader Name: | Francisco Lo Presti, UCR |
| Unit Pref: | Metric |
| Area Total Km2: | 8,955 |
| Population Total: | 182,962 |
| Population Density Km2: | auto |
| Population Demonym: | lasherino/na |
| Postal Code Type: | Postal Code |
| Postal Code: | M5539 |
| Postal2 Code Type: | IFAM |
| Postal2 Code: | MZA006 |
| Area Code Type: | Area Code |
| Area Code: | 0261 |
| Blank Name Sec1: | Patron saint |
| Blank Info Sec1: | ? |
Las Heras is a department located in the north west of Mendoza Province in Argentina.
The provincial subdivision has a population of about 183,000 inhabitants in an area of, and its capital city is Las Heras, which is located around from the Capital federal. The province's international airport, Governor Francisco Gabrielli International Airport is located within this subdivision.
The Partido and its capital are named after General Juan Gregorio de las Heras (1780-1866), a military leader during the Argentine War of Independence.
The mountains of the Andes act as a natural border between Argentina and Chile, the mountain range forms much of the western part of the department of Las heras.
Mount Aconcagua is located in Las Heras Department, at 6,962 metres above sea level it holds many records, including:
The people of Las Heras are proud to have such an important mountain in their department, and as one of the Seven Summits it brings a great number of mountaineers and sightseers to the region.