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| Harrity | Very rare: Armagh. Ir. Ó h-Aireachtaigh, variant of Heraghty, q.v. |
| Heraghty | fairly rare: Sligo-Leitrim etc. Ir. Ó h-Oireachtaigh, oireachteach, assembly-man. Also as Heraughty, Heraty, Herity. See Geraghty also. SGG. |
| Heraty | Quite numerous: Mayo etc. See Heraghty. |
| Heraughty | Very rare: Connacht generally. See Heraghty. |
| Ó h-Oireachtaigh | Heraghty: cuíosach annamh: Sligeach-Liatroim. Tá Erraught le fáil i gCiarraí. Féach Mag Oireachtaigh. |
Parishes where Heraty and a second surname are both baptised.