What nationality ancestery is last name "Gilmore"?

Question:

What nationality ancestery is last name "Gilmore"?

Best Answer - Chosen by Asker: Apparently it is Irish and Scottish.

The Irish:
The name translates to ''son of Giolla Mhuire'' meaning ''servant of Mary. It was the name of a family in County Down who were chiefs of Ui Derca Cein in the barony of Castlereagh. They are a branch of the family of O''Morna, formerly lords of Lecale, being descended from Giolla Mhuire 㓠Morna, lord of Lecale, whose death is recorded in the Annals of the Four Masters at the year 1276. The name is also in use in Scotland where it is anglicised to Morrison (Muire''s son).

The Scottish:
The surname Gilmore (or Gilmour) comes from "Gille Moire", meaning `Servant of the Virgin Mary'. During medieval times in Scotland, it was frequently used as a font name.

In the 1300s, it was a common surname in the Borders region of Scotland.