Museo Nacional de Historia Natural | |
 Main entrance | |
  Location within Montevideo | |
| Established | 1838 |
|---|---|
| Location | Miguelete 1825, 11800 Montevideo, Uruguay |
| Coordinates | 34°53′40″S 56°10′48″W / 34.8945°S 56.1801°W |
| Type | Natural history museum |
| Director | Javier González |
| Website | www |
The National Museum of Natural History (Spanish: Museo Nacional de Historia Natural or MNHN) in Montevideo is a natural history museum in Uruguay. It opened in 1838, and is the oldest scientific institution in Uruguay and one of the oldest natural history collections in the world. The museum's first permanent exhibition space is at Miguelete 1825—the former Miguelete Prison—and the scientific collections, library and administrative offices are at Calle 25 de Mayo 582 in the Old City.