Holy Trinity Abbey, Lough Key
Mainistir na Tríonóide | |
Arms of the Order of Canons Regular of Prémontré | |
| Monastery information | |
|---|---|
| Other names | Lough Key Abbey |
| Order | Order of Canons Regular of Prémontré (Premonstratensians) |
| Established | 1215 |
| Disestablished | 1608 |
| Mother house | Prémontré Abbey, Picardy |
| Diocese | Elphin |
| People | |
| Founder(s) | Clarus Mag Máilin |
| Architecture | |
| Status | inactive |
| Style | Norman |
| Site | |
| Location | Trinity Island, Lough Key, County Roscommon |
| Coordinates | 53°59′21″N 8°15′17″W / 53.989217°N 8.254697°W |
| Public access | yes |
| Official name | Trinity Abbey (Trinity Island) |
| Reference no. | 556 |
Holy Trinity Abbey is a former medieval Premonstratensian priory and National Monument located in Lough Key, Ireland.