| Junín | |
| Native Name: | Departamento Junín |
| Settlement Type: | Department |
| Coordinates: | -33.25°N -111°W |
| Subdivision Type: | Country |
| Subdivision Name: | Argentina |
| Established Title: | Established |
| Established Date: | January 18, 1859 |
| Seat Type: | Seat |
| Seat: | Junín |
| Leader Title: | Mayor |
| Leader Name: | Mario Abed, UCR |
| Unit Pref: | Metric |
| Area Total Km2: | 263 |
| Population Total: | 35,045 |
| Population Density Km2: | auto |
| Population Demonym: | junínense |
| Postal Code Type: | Postal Code |
| Postal Code: | M5585 |
| Postal2 Code Type: | IFAM |
| Postal2 Code: | MZA004 |
| Area Code Type: | Area Code |
| Area Code: | 02623 |
| Blank Name Sec1: | Patron saint |
| Blank Info Sec1: | Our Lady of the Rosary |
Junín is a central department of Mendoza Province in Argentina.
The provincial subdivision has a population of about 35,000 inhabitants in an area of, and its capital city is Junín, which is located around from the Capital Federal.