Household numbers by county in Griffith's (1847-64), as on the map

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Surname Dictionary

Laughlin fairly numerous: Belfast, Antrim etc. Ir. Lochlainn (Scandinavia). Perhaps for Mac Lochlainn from Norse first name Lachlan in Scotland. See O'Loughlin.
Loughlin numerous: Ulster, Connacht, N Leinster etc. Ir. Ó Lochlainn, Lochlann, a first name probably meaning Viking. The best-known sept was of Dál gCais (Clare) and the name exists also as MacLoughlin, q.v. GPN.
Ó Lochlainn rare: Galway etc. Ir.Lang. See Loughlin.
Ó Lochlainn O'Loughlin, Loughlin: líonmhar tríd an dtír: in Ultaibh, Connachta, an Clár go sonrach. Clann a bhí i gceannas i gCorca Modhruaidh (Deoise Chill Fhionnabhrach anois). Tá meascadh le Mac Lochlainn sa tuaisceart agus in Oirghialla deineadh Loughlin agus Laughlin díobh.
O'Loghlen Quite numerous: Clare etc. Ir. Ó Lochlainn. A sept of the Burren, N Clare. See O'Loughlin.
O'Loughlin numerous: all areas, especially Clare. Ir. Ó Lochlainn, from a first name of Norse origin. A sept of Clare located in the Burren. IF.


  • O'Loghlen in 1659.
  • O'Loghlen births mapped 1864-1913
  • O'Loghlen 1901 census map
  • O'Loghlen 1911 census map
  • O'Loghlen Roman Catholic baptisms

The surname

Parishes where O'Loghlen and a second surname are found together


Variants in Griffith's
& total households

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Non-Griffith's Variants

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