Cassidy households in mid-nineteenth century Ireland

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

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Surname Dictionary

Cassidy Very numerous: Ulster, N Leinster, Dublin etc. Ir. Ó Caiside. Physicians to the Maguires of Fermanagh, they were dispersed in the Plantation of Ulster. IF.
Ó Caiside Cassidy: an-líonmhar in Ultaibh, Laighin Thuaidh & rl. Ó thús, clann léannta a bhain le Mag Uidhir Fhear Manach.IF.
O Casaide rare: Dublin etc. Ir.Lang. See Cassidy.


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

The surname

Parishes where Cassidy 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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