Gilmore (surname) lad". Gilmore (surname) Gilmore and Gillmore are surnames with several origins and meanings. The name can be of Irish (from Ulster) and Scottish Highland origin, Anglicised from the Gaelic "Mac Gille Mhoire" (Scottish Gaelic), "Mac Giolla Mhuire" (Ulster Irish Gaelic). The name was a patronymic name meaning "servant of (the Virgin) Mary". Another origin of the surname Gilmore is Irish, with two separate meanings. In County Armagh, the name is an Anglicised form of "Mac Giolla Mhura" "servant of St. Mura" (of Fahan, County Donegal). In County Sligo, "Gilmore" is an Anglicisation of "Mac Giolla Mhir" meaning "son of the
Surname as well as "FitzWilliam" or "Fitzwilliam". Irish surnames are the oldest surnames in Europe. The common prefixes "Ó" and "Mac" can be spelled with the prefix as a separate word, yielding "Ó Briain" or "Mac Millan" as well as the anglicized "O'Brien" and "MacMillan" or "Macmillan". In the United States, 1,712 surnames cover 50% of the population, and about 1% of the population has the surname Smith, which is also the most frequent English name and an occupational name ("metal worker"), a contraction, for instance, of blacksmith or other metalsmiths. Several American surnames are a result of corruptions or phonetic