Oulahan households in mid-nineteenth century Ireland

Householders by county in (1847-64), as on the map

Click on a county to see more detail

Surname Dictionary

Holahan rare: Dublin, Cavan. See Holohan.
Holohan numerous: Kilkenny-Laois-Tipperary, Down. Ir. Ó h-Uallacháin, uallach, proud. Septs of Mid-Leinster and Clare. The anglicised versions of this name are many, it is usually Houlihan in Munster. SI & IF.
Hoolahan rare: Dublin. See Holohan.
Houlahan rare: Dublin, Armagh. See Houlihan.
Houlihan numerous: Munster, S Leinster etc. Ir. Ó h-Uallacháin, uallach, proud. Families of Offaly and Clare. Changed to Holland in W Cork and Nolan in Connacht. See also Holohan and Holian. IF & SGG.
Wolahan rare: Dublin etc. Variant of Wolohan, q.v.
Wolohan Quite numerous: Wicklow etc. Ir. Ó h-Uallacháin. A sept of Mid-Leinster. See Houlihan.
Woulaghan Very rare: Antrim. Ir. Ó h-Uallacháin. See Houlihan and Willaghan.
Woulahan Very rare: Arklow (Wicklow). See Wolohan.


  • Oulahan in 1659.
  • Oulahan births mapped 1864-1913
  • Oulahan 1901 census map
  • Oulahan 1911 census map
  • Oulahan Roman Catholic baptisms
  • Oulahan Roman Catholic marriages NEW!

Parishes where Oulahan and a second surname are found together


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