Arigna
| Arigna An Airgnigh | |
|---|---|
| Village | |
| Arigna looking towards Lough Allen | |
| Coordinates: 54°04′40″N 8°06′20″W / 54.0778°N 8.1056°W | |
| Country | Ireland | 
| Province | Connacht | 
| County | County Roscommon | 
| Elevation | 86 m (282 ft) | 
| Time zone | UTC+0 (WET) | 
| • Summer (DST) | UTC+1 (IST (WEST)) | 
| Irish Grid Reference | G931142 | 
Arigna (Irish: An Airgnigh, formerly Carn an Ailt) is a village in the far north of County Roscommon in the west of Ireland. It is near Lough Allen (on the River Shannon), on a designated scenic route between Keadue and Sliabh an Iarainn. Arigna is situated in Kilronan parish, along with the villages of Keadue and Ballyfarnon. The area has a long association with the coal mining industry, carried out for over 400 years until the mines closed in 1990.