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| Horahan | Very rare: Carlow. See Hourihan etc. |
| Horigan | fairly rare: Limerick. See Horgan. |
| Houraghan | Very rare: scattered. See Hourihan. |
| Hourican | fairly rare: Longford, S Down. Ir. Ó h-Anragáin. See also Hourigan & Hourihan. |
| Hourigan | fairly numerous: Munster, S Leinster. Ir. Ó h-Anragáin, a corruption of Ó h-Anradháin, according to Woulfe. Septs: Clare, Laois, W Meath, W Cork. There was also a W Cork name, Ó h-Odhragáin, to contribute to the confusion. |
| Hourihane | fairly numerous: Almost all in Cork. Ir. Ó h-Anradháin. Woulfe gives anradh as warrior, champion. See also Hourigan. SGG. |
| Ó h-Annragáin | Hourigan: cuíosach líonmhar: Tuathmhumhain & rl. Is cosúil gur claochlú ar Ó h-Anradháin atá annso arís. Ach luann de Bhulbh Ó h-Odhragáin, q.v. |
| Ó h-Odhragáin | Hourigan: bhí a leithéid i gCorca Laoidhe (iarthar Chorcaí) ach tá siad measctha le Ó h-Annragáin anois. SGG. |
Parishes where Haurighan and a second surname are both baptised.
This list shows total Haurighan Roman Catholic baptisms by county.
Click on the county to see detail.