| Type: | municipality |
| Official Name: | Monroyo/Mont-roig de Tastavins |
| Pushpin Map: | Spain Aragon#Spain |
| Pushpin Map Caption: | Location of Monroyo/Mont-roig de Tastavins within Aragon##Location of Monroyo/Mont-roig de Tastavins within Spain |
| Coordinates: | 40.7833°N -2°W |
| Subdivision Name3: | Monroyo/ Mont-roig de Tastavins |
| Area Total Km2: | 79.20 |
| Elevation M: | 857 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
Monroyo (pronounced as /es/) or Mont-roig de Tastavins (in Catalan; Valencian monˈrɔdʒ ðe ˌtastaˈβins/) is a municipality located in the Matarraña/Matarranya comarca, province of Teruel, Aragon, Spain. According to the 2004 census (INE), the municipality has a population of 324 inhabitants.