| Olne | |
| Picture-Legend: | Olne town hall |
| Map: | Olne Liège Belgium Map.svg |
| Map-Legend: | Location of Olne in the province of Liège |
| Arms: | Blason commune Olne (Belgique).svg |
| Arrondissement: | Verviers |
| Nis: | 63057 |
| Majority: | POUR OLNE |
| Postal-Codes: | 4877 |
| Telephone-Area: | 087 |
| Web: | www.olne.be |
| Coordinates: | 50.5833°N 50°W |
Olne (in French pronounced as /ɔln/; Walloon: Ône) is a municipality of Wallonia located in the province of Liège, Belgium.
On January 1, 2006, Olne had a total population of 3,793. The total area is 15.99 km2 which gives a population density of 237 inhabitants per km2.
Olne was the 24th village to join Les Plus Beaux Villages de Wallonie.[1]