Last name: Casey

This interesting name, with variant spelling O'Casey, is an Anglicized form of the Old Gaelic "O'Cathasaigh", from the Gaelic prefix "O" indicating "male descendant of", plus the personal byname "Cathasach", meaning vigilant or watchful. Traditionally, Irish family names are taken from the heads of tribes, revered elders, or from some illustrious warrior, and are usually prefixed by "O", as above, or "Mac", denoting "son of". Six distinct septs of this name existed in Ireland: the most important of these in early times were erenaghs of Devenish, County Fermanagh, where the family held church property from generation to generation. A minor sept having the prefix "Mac", instead of "O", was located in County Monaghan, and three bishops named Mac Casey occupied the see of Clogher in the 14th Century. Another leading O'Casey family were Lords of the Suaithni (comprising the modern barony of Balrothery West, County Dublin), and a further family were erenaghs of Clondara in the barony of Athlone, County Roscommon. The Dalcassian septs were seated at Liscannon, County Limerick, and near Mitchelstown, County Cork; the name is now most numerous in these Munster counties. John Keegan Casey (1846 - 1870) was a Fenian and Gaelic poet. The first recorded spelling of the family name is shown to be that of Johane Casey, which was dated April 18th 1569, marriage to Thomas Nowell, at St. Gregory by St. Paul's, London, during the reign of Queen Elizabeth 1, known as "Good Queen Bess", 1558 - 1603. Surnames became necessary when governments introduced personal taxation. In England this was known as Poll Tax. Throughout the centuries, surnames in every country have continued to "develop" often leading to astonishing variants of the original spelling.

© Copyright: Name Origin Research 1980 - 2017

Surname Scroll

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Jessica Haver
I'm German but my mother is Irish and is a casey.

Allicia Heminsley
My Grandmother was a Casey she used to live in England i didn't know the name was Irish. Makes sense though since some cousins of mine live in Ireland.

Christine Casey-Blake
I get my irish name from my father side of the family. I would love to know more

peter casey
we traced our casey family back to the out skurts of Dublin,and castles and villiges est.was great see the coat of arms est.

Kendra April Casey
I love seeing all the Casey's in the comments

Seamus Casey
My name is Casey too. I certainly live up to my name. Ever heard of 'casing a joint'? I've never been involved in criminal activity. I like my name though. I'm from Ireland. I have met other people from Ireland too. Imagine. I like The Beatles a lot. Yeah. The Casey's. Where do any of of fit into this world?

Catherine Casey
My aunt has traced our lineage to find out we have distant relatives in Ireland. I love finding this stuff out, so fascinating!

Lawrence Casey
My father was William L. Casey from Ligonier, PA. His father was Edwin H Casey from Ligonier,PA. His father was Lawrence C Casey from Maryland

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