Mcwilliams Family History
14-Day Free Trial
Mcwilliams Name Meaning
Irish: Anglicized form of Gaelic Mac Uilleim, a patronymic from a Gaelicized form of William, with the redundant addition of English patronymic -s. In many cases it represents a partial Gaelicization of Welsh Williams.
Source: Dictionary of American Family Names ©2013, Oxford University Press
Similar surnames: Mcwilliam, Mcphillips, Guilliams, Mckellips, Williams, Mcquillan