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Last name origin & meaning:

Irish: reduced Anglicized form of Gaelic Mac Oisdealbhaigh ‘son of Oisdealbhach’, a personal name composed of the elements os ‘deer’, ‘fawn’ + dealbhach ‘in the form of’, ‘resembling’.

Famous people with this last name: Elvis Costello

This name appears in the following lists: Rock Kings and Queens