| Abbeylara | |
| Native Name: | Irish: Mainistir Leathrátha |
| 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: | Leinster |
| Subdivision Type3: | County |
| Subdivision Name3: | County Longford |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Utc Offset1: | +0 |
| Timezone1 Dst: | IST (WEST) |
| Utc Offset1 Dst: | -1 |
| Coordinates: | 53.7646°N -7.4462°W |
| Elevation M: | 82 |
| Blank Name: | Irish Grid Reference |
Abbeylara [1] is a village in the easternmost portion of County Longford, Ireland. It is located about three kilometers east of Granard on the R396 regional road. The village is in a townland and civil parish of the same name.
Its name is derived from a monastery, the great Abbey of Lerha, founded in 1205 by Hiberno-Norman magnate, Risteárd de Tiúit, for Cistercian monks. The monastery was dissolved in 1539, although its ruins are still apparent on approach to the village. An ancient earthwork, the Duncla (Irish Dún-chlaí meaning "fortified ditch") or Black Pig's Dyke, which runs south-eastwards from Lough Gowna to Lough Kinale, goes through the larger parish of Abbeylara, and passes about one kilometre north of the village.
Because of its proximity to Lough Kinale and Lough Derragh, with a plentiful supply of trout, tench, bream and pike, Abbeylara attracts anglers and local angling clubs hold regular competitions.
Abbeylara GFC are the local Gaelic football club.
On 20 April 2000, the Gardaí (police) shot dead local man John Carthy in a siege at his home.