Updated June 9, 2019 Share: Boy name origins & meanings Greek : Shield of hidesFrench : Youth Boy name variations Giles Gyles Gilles Gilean Gileon Gil Gillette Gillian Egedio Egide Egidius Gide Jetes Jyles How Popular Is The Name Gillis Family name origins & meanings Scottish : reduced form of Gaelic Mac Gille Iosa ‘son of the servant of Jesus’. Compare McLeish. The usual spelling in Scotland is Gillies.Dutch form of Giles.