John Weir may refer to:
- John Weir (physician) (1879–1971), Physician Royal to several British monarchs
- John Angus Weir (1930–2007), fourth president of Wilfrid Laurier University
- John Ferguson Weir (1841–1926), American painter and sculptor
- John Jenner Weir (1822–1894), English amateur entomologist, ornithologist and British civil servant
- John Weir (loyalist) (born 1950), Ulster loyalist
- Johnny Weir (born 1984), American figure skater
Famous quotes containing the word weir:
“The first thing to be done by a biographer in estimating character is to examine the stubs of his victim’s cheque-books.”
—Silas Weir Mitchell (1829–1914)