| Mahony | numerous: all areas, especially Munster. Ir. Ó Mathghamhna (Mathúna). From first name Mathghamhain, "bear-calf". A sept located in W Cork, now usually O'Mahony. IF. |
| Ó Mathghamhna | Ó Mahony: an-líonmhar i gCúige Mumhan - Corcaigh ach go h-áirithe. Clann chumasach a bhí suite i gCineál mBéice in iarthar Chorcaí. Tháinig an sloinne ón ngaiscíoch Mathghamhain a thuit i gCath Chluain Tarbh maraon le an-chuid d'fhir Deasmhumhan. Tugtar an bhrí: mathúin (litriú nua) = béar (Laidin ursus). Bhí an t-ainm coitianta i measc na mBrianach agus na gConchúrach. IF & SGG. |
| O Mathúna | rare: Cork etc. Ir.Lang. See O'Mahony. |
| O'Mahony | Very numerous: all areas, especially Cork and Munster generally. Ir. Ó Mathghamhna, modern Ó Mathúna. From first name Mathghamhain "bear-calf". A sept of W Cork. Their eponymous ancestor fell at the battle of Clontarf in 1014. IF. |
DEDs where Mahony and a second surname are found together
This list shows total 1901 Mahony households by county.
Click on the county to see detail.
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