McGillis
McGillis is a surname of Gaelic origin, most likely a variant of Mac Giolla, a patronymic form meaning “son of the devotee” or “son of the servant” of a saint or religious figure. The element Giolla derives from Gaelic giolla, meaning “youth” or “servant,” and Mac Giolla yields several Anglicized spellings, including McGill, Gillis, Gill, and McGillis. The form McGillis reflects regional phonetic changes and clerical spelling practices in Scotland and Ulster, and is found among descendants of Gaelic-speaking communities in North America.
In terms of distribution, McGillis is most often associated with Scotland and Ireland, particularly Ulster, and
As a surname, McGillis is carried by multiple individuals across various professions, including law, education, athletics,