| Castañuelas | |
| Pushpin Map: | Dominican Republic |
| Pushpin Relief: | 1 |
| Coordinates: | 19.7°N -71.5°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Monte Cristi |
| Established Title2: | Municipality since |
| Established Date2: | 1974 |
| Area Total Km2: | 80.90 |
| Area Footnotes: | [1] |
| Population Total: | 14,878 |
| Population As Of: | 2012 |
| Total Type: | Total |
| Population Urban: | 4,005 |
| Population Density Km2: | auto |
| Population Footnotes: | [2] |
| Blank1 Name: | Municipal Districts |
| Blank1 Info: | 1 |
Castañuelas is a town and municipality located in Monte Cristi Province, Dominican Republic. Its total population is 14,878 with the urban population at 4,005.