| Collanmore Island | |
| Map: | Island of Ireland |
| Native Name: | Collainn Mhó |
| Native Name Link: | Irish language |
| Location: | Atlantic Ocean |
| Country: | Ireland |
| Country Admin Divisions Title: | Province |
| Country Admin Divisions: | Connacht |
| Country Admin Divisions Title 1: | County |
| Country Admin Divisions 1: | Mayo |
| Population: | 5 |
| Population As Of: | 2022 |
| Population Footnotes: | [1] |
Collanmore Island (from Irish: Collainn Mhór) is an island in Clew Bay, County Mayo, Ireland.
One of the bigger islands in the bay, Collanmore was a base of Les Glénans, a non-profit sailing school. The base taught dinghy and catamaran sailing and sail-boarding. From Collanmore there are views of Croagh Patrick and the bay. It is accessed by boat from Rosmoney pier, a few kilometres from Westport, County Mayo. In 2022 there were 5 registered inhabitants of Collanmore Island.[1]
The table below reports data on Collanmore's population taken from Discover the Islands of Ireland (Alex Ritsema, Collins Press, 1999) and the Census of Ireland.