Casement, Caseman - Anglicised Surnames in Ireland

Padraig Mac Giolla-Domhnaigh
1923

Casement, Caseman—This is the anglicised form of the Isle of Man name, Mac Easmuinn. This name is of Norse-Gaelic origin, its earliest form being Mac As-mundr. It was written Mac Casmonde in 1429, and Mac Casmund in 1511. The Casement family of Co. Antrim came from Ramsay, Isle of Man, about the beginning of the 18th century.

Alphabetical Index of Anglicised Surnames in Ireland

See also Woulfe’s Irish Names and Surnames
and O'Hart's Irish Pedigrees