Gaelic (Scottish or Irish).
The surname McKeon is typically of Irish origin. It is derived from the Gaelic "Mac Eoin," meaning "son of Eoin" or "son of John." However, variants of this surname can sometimes be found in Scotland as well.
Sweeney is a surname that is in most cases, of Irish origin, derived from the Gaelic Mac Suibhne meaning "son of Suibhne"
Cassidy is an Irish name. A shortened version of Gaelic
The proud and noble Irish surname of Sheehan is first found in County Limerick. It derives from the Gaelic language word meaning "peaceful".
'Melanie' is used in Ireland even with the surname in Gaelic. There is no Irish Gaelic version of the name.
The word for "name" is ainm in Irish (Gaelic);In (Scots) Gaelic it's also ainm.('Surname' is sloinne in Irish; sloinneadh in Scottish Gaelic.)
In Irish Gaelic usage it is Melissa even if the surname has an Irish form. Probably the same case for Scots Gaelic.
Gaelic (Scottish or Irish).
According to one source its Irish Gaelic spelling was Caimpion.
In Scots Gaelic: MacUilleim; In Irish: Mac Liam.
Unless it is an anglicized version of O'Fihilly of Co. Cork, it is an English surname found mainly in Dublin and most likely has no Irish Gaelic form.
Seeing as how it is an English surname, I doubt that it has an Irish form.
The Irish surname Shasnan was anglicized Sexton.
It is a surname originating from Britain and Ireland
It is an Irish surname. It is an anglicized version of the Irish Gaelic Mac an Ridire (son of the knight). They were a branch of the Fitzsimons'.
Ó Comhraí / Ó Comhraidh