It's not of Gaelic origin.
It is derived from Mac Óda a Gaelic surname adopted by the Archdeacon family of Co. Kilkenny, Ireland.
The surname originates in Ireland. Family motto: By virtue and prudence!
The Irish surname Ó Dúnlaing (anglicized as Dowling, Dooling, and Doolan) is notconnected to the Scottish Laing family. The Scottish surname is derived from aScots word meaning 'tall man' rather than Scottish Gaelic.
It is Scottish-Irish surname. It is found in Donegal County, Ireland
The Thompson surname comes from Ireland and Scotland.
The surname O'Brien is very common in Ireland so many people that have it can trace themselves back to Ireland if they are not actually from Ireland.
The surname Lacey is an English and Irish (of Norman origin) place name. The surname is widespread in Britain and Ireland, but most common in Nottinghamshire. In Ireland the family is associated particularly with County Limerick.
The proud and noble Irish surname of Leonard is first found in County Galway along the western coast of Ireland, where they held a family seat from ancient times. Deriving from the Gaelic language, it carries the meaning of either "cloak" or "paramour". Family motto: "Of an ancient Irish stock!"
The family surname Cox has its origins in England AND Ireland.
It has no meaning in Irish; it is the surname of a family of Welsh origin in Ireland.
If a surname of English origin it would remain the same. If a surname of Irish origin it would be Mac Siurtáin (son of Siurtán, Jordan), a Gaelic name assumed by the d'Exeter family.
The Scottish surname Bryce comes from the Gaelic word for "quick" or "speedy". Ancestors of the family line held a family seat in very ancient times in Morayshire. Family motto: "Let justice be done!"