McKinley (surname)


McKinley, MacKinley or Mackinlay is a Scottish and Irish surname historically associated with northwestern Ireland's County Donegal, the over-kingdom of Ulaid in northeastern Ireland and the Scottish Highlands.
One derivation given is that the McKinley are of the ancient Ulaid race and are a branch of its "Red Branch" MacDunleavy royal house of the Dal Fiatach which dominated the kingship of the over-kingdom of Ulaid. Etymology for the origins of the surname proposes that the Anglicized surname McKinley, like the surname MacNulty, arose originally from a Gaelic nickname given the deposed MacDunleavy dynasty royals while exiled in Tirconnell and elsewhere. Being, also, one of Ireland's ancient hereditary medical families, the MacDunleavy were in Tirconnell accorded the high Gaelic status of "ollahm leighis" or the official physicians to the O'Donnell clan in County Donegal and practiced as physicians while exiled in Argyll, Scotland. The nickname was Mac an Leigh. Per this scenario the Gaelic language patronymic forming prefix "Mac" is joined to the Gaelic language "Léigh" meaning leech, but denoting a physician. Leeching having been for millennia, in Gaelic Ireland and elsewhere, a commonly employed medical practice.
Otherwise, the name is said to be of Scottish origin, meaning 'son of Finlay'.
Notable people surnamed McKinley include: