| Largydonnell | |
| Native Name: | Irish: Learga Uí Dhónaill |
| Native Name Lang: | ga |
| Settlement Type: | Village |
| Pushpin Map: | Ireland |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Ireland |
| Subdivision Type: | Country |
| Subdivision Name: | Ireland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Connacht |
| Subdivision Type3: | County |
| Subdivision Name3: | County Leitrim |
| Unit Pref: | Metric |
| Area Footnotes: | [1] |
| Area Total Km2: | 2.9 |
| Population As Of: | 2002 |
| Population Density Km2: | auto |
| Utc Offset1: | +0 |
| Timezone1 Dst: | IST (WEST) |
| Utc Offset1 Dst: | -1 |
| Coordinates: | 54.4111°N -8.3194°W |
| Elevation M: | 99 |
| Blank Name: | Irish Grid Reference |
Largydonnell [2] is a village on the R280 regional road in the north of County Leitrim in Ireland.
Bus Éireann Fridays-only route 495 (Ballyshannon-Bundoran-Kinlough-Manorhamilton) serves the village twice in each direction.[3]
Nearby to Largydonnell Post Office at the hump-backed bridge, on a road to the right in Ahanlish, are the ruins of an old forge where De Cuellar, a survivor of the wreck of the Spanish Armada at Tullaghan, spent some time before proceeding to MacClancy's Castle, located on an islet in Lough Melvin in the townland of Rosclogher, where he remained for three months.