| Olvio | |
| Name Local: | Όλβιο |
| Type: | community |
| Coordinates: | 41.029°N 24.799°W |
| Periph: | Eastern Macedonia and Thrace |
| Periphunit: | Xanthi |
| Municipality: | Topeiros |
| Population As Of: | 2021 |
| Population: | 286 |
Olvio (el|Όλβιο) is a settlement in the municipality Topeiros in the Xanthi regional unit of Greece.[1] It is located six kilometers north of Evlalos and 24 kilometers northeast of Xanthi. In 2021, the population of Olvio was 286 inhabitants.