| O Carballiño | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Province of Ourense#Spain Galicia#Spain |
| Pushpin Map Caption: | Location in the Province of Ourense##Location in Galicia##Location in Spain |
| Coordinates: | 42.4306°N -8.0792°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Autonomous Community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ourense |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | O Carballiño |
| Leader Party: | PSdeG |
| Leader Title: | Mayor |
| Leader Name: | Francisco Fumega |
| Area Total Km2: | 54 |
| Elevation Footnotes: | (AMSL) |
| Elevation M: | 26.549 |
| Population As Of: | 2019 |
| Population Density Km2: | auto |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST (GMT +2) |
| Utc Offset1 Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 32500 |
| Area Code: | +34 (Spain) + 988 (Orense) |
| Website: | www.carballino.org |
O Carballiño is a municipality in the province of Ourense, in the autonomous community of Galicia, Spain. It has a population of 13,939 (2019)[1] and an area of 54 km2.