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Surname Etymology and Meaning of GILLIS

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Name meanings and etymologies are often disputed. The information here is compiled from freely available sources, and no claims whatsoever are made for accuracy, either historical or etymological.

1. Scottish: reduced form of Gaelic Mac Gille Iosa ‘son of the servant of Jesus’. Compare McLeish. The usual spelling in Scotland is Gillies.
2. Dutch form of Giles.

Source: Dictionary of American Family Names (2003)