William Gilmour may refer to:
William Gilmour (musician) (fl. 2010s), British musician and artist William Gilmour (writer) (fl. 1980s), writer of lost race fantasy short stories and novels William Weir Gilmour (1905–1998), Scottish politician
See also William Gilmer (1863–1955), U.S. Navy Captain and Naval Governor of Guam Bill Gilmour (disambiguation) Billy Gilmour (disambiguation)