Inishmore
| Native name:  Árainn | |
|---|---|
| The karst landscape on Inishmore from Dún Aonghasa | |
| Geography | |
| Location | Atlantic Ocean | 
| Coordinates | 53°07′25″N 9°43′39″W / 53.12361°N 9.72750°W | 
| Area | 7,636 acres (3,090 ha) | 
| Length | 14 km (8.7 mi) | 
| Width | 3.8 km (2.36 mi) | 
| Highest elevation | 123 m (404 ft) | 
| Highest point | An Droim Rua | 
| Administration | |
| Ireland | |
| Province | Connacht | 
| County | Galway | 
| Demographics | |
| Population | 820 (2022) | 
| Pop. density | 24.7/km2 (64/sq mi) | 
Inishmore (Irish: Árainn [ˈaːɾˠən̠ʲ] ⓘ, Árainn Mhór [ˈaːɾˠən̠ʲ woːɾ] or Inis Mór [ˈɪnʲɪʃ mˠoːɾ]) is the largest of the Aran Islands in Galway Bay, off the west coast of Ireland. With an area of 31 km2 (12 sq mi) and a population of 820 (as of 2016), it is the second-largest island off the Irish coast (after Achill) and most populous of the Aran Islands.
The island is in the Irish-speaking Gaeltacht and has a strong Irish culture. Much of the island is karst landscape and it has a wealth of ancient and medieval sites including Dún Aonghasa, described as "the most magnificent barbaric monument in Europe" by George Petrie. The island is a civil parish of the same name.