John Gillis or Gillies may refer to: John Gillies (minister) (1712–1796), Church of Scotland minister and theological writer John Gillies (historian) (1747–1836), Scottish historian John Gillies (botanist) (1792–1834), Scottish naval surgeon, explorer and botanist John P. Gillis (1803–1873), U.S. Navy officer John Gillies (New Zealand politician) (1802–1871), New Zealand local politician (Otago Provincial Council) and church elder John Lillie Gillies (1832–1897), New Zealand politician John Gillies (Canadian politician) (1837–1889), Ontario farmer and political figure John Gillies (Australian politician) (1844–1911), Scottish-born Australian politician John F. Gillis (1846–1899), physician and political figure in Prince Edward Island John Joseph Alban Gillis (1882–1965), physician and politician in British Columbia, Canada John Hugh Gillis (1884–1913), Canadian track and field athlete John Gillies (footballer) (1918–1991), Scottish footballer John Gillies (doctor) (fl. 1970s–2010s), Scottish general practitioner John Gillis (historian) (born 1939), professor of history at Rutgers University John Gillies (artist and musician) (born 1960), Australian artist and musician Jack White or John Gillis (born 1975), musician Jon Gillies (born 1994), ice hockey player