| Belén | |
| Native Name: | Departamento Belén |
| Settlement Type: | Department |
| Coordinates: | -27.65°N -69°W |
| Subdivision Type: | Country |
| Subdivision Name: | Argentina |
| Established Title: | Established |
| Established Date: | July 12, 1658 (city) |
| Founder: | ? |
| Seat Type: | Seat |
| Seat: | Belén |
| Leader Title: | Mayor |
| Leader Name: | Daniel Eduardo Ríos, FCS |
| Unit Pref: | Metric |
| Area Total Km2: | 12,945 |
| Population Total: | 12,252 |
| Population Density Km2: | auto |
| Population Demonym: | beleña/o |
| Postal Code Type: | Postal Code |
| Postal Code: | K4750 |
| Postal2 Code Type: | IFAM |
| Postal2 Code: | CAT005 |
| Area Code Type: | Area Code |
| Area Code: | 03835 |
| Blank Name Sec1: | Patron saint |
| Blank Info Sec1: | ? |
Belén is a department of Catamarca Province in Argentina.
The provincial subdivision has a population of about 12,000 inhabitants in an area of, and its capital city is Belén, which is located around 1,465 kilometres from Buenos Aires City.
The mainstay of the economy is farming, but there are also a number of mines in the department, with the extraction of gold, silver and various minerals.