Cloonboo
| Cloonboo Cluain Bú | |
|---|---|
| Village | |
| Cloonboo Castle | |
| Coordinates: 53°22′34″N 9°0′46″W / 53.37611°N 9.01278°W | |
| Country | Ireland | 
| Province | Connacht | 
| County | County Galway | 
| Population  (2022) | 484 | 
| Time zone | UTC+0 (WET) | 
| • Summer (DST) | UTC-1 (IST (WEST)) | 
Cloonboo (Irish: Cluain Bú) is a village in County Galway, Ireland. It is located on the N84 national secondary road from Galway to Castlebar.