| Ogonnelloe | |
| Settlement Type: | Civil parish |
| Pushpin Map: | Ireland |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Ireland |
| Subdivision Type: | Country |
| Subdivision Name: | Ireland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Munster |
| Subdivision Type3: | County |
| Subdivision Name3: | County Clare |
| Unit Pref: | Metric |
| Area Footnotes: | [1] |
| Area Total Km2: | 40.07 |
| Population As Of: | 2006 |
| Population Rural: | 605 |
| Population Density Km2: | auto |
| Utc Offset1: | +0 |
| Timezone1 Dst: | IST (WEST) |
| Utc Offset1 Dst: | -1 |
| Coordinates: | 52.8667°N -8.453°W |
| Blank Name: | Irish Grid Reference |
Ogonnelloe is a civil parish in east County Clare, Ireland, situated on the R463 regional road between Scariff and Killaloe and in the surrounding hills. It forms part of the Catholic parish of the same name.
The parish is in the barony of Tulla. It is northwest of Killaloe on the road to Scarriff. It lies on the south side of Scariff bay, which opens into Lough Derg. Most of the parish lies in a valley, with high hills in the background.[2] The parish covers . Most of the land is suitable for farming, but there is some mountain bog. As of 1837 there was the ruins of an old church at Ballybrohan, and the ruins of Cahir castle on a small island about from the shore.
Townlands are Aughinish, Ballybran, Ballybroghan, Ballyheefy, Ballyhurly, Ballylaghnan, Ballynagleragh, Bealkelly (Eyre), Bealkelly (Purdon), Caher, Carrowcore, Carrowena, Carrowgar, Islandcosgry, Rahena Beg and Rahena More.[3]