William Barr may refer to:
- William Barr (politician) (born 1950), 77th Attorney General of the United States
- William Barr (Arctic historian), Arctic historian at the University of Calgary, Canada
- William Barr (artist), early 20th Century California artist
- Billy Barr, English footballer and coach
- William Barr (Spanish Texas merchant), co-founder of House of Barr and Davenport
Famous quotes containing the word barr:
“There are no little events in life, those we think of no consequence may be full of fate, and it is at our own risk if we neglect the acquaintances and opportunities that seem to be casually offered, and of small importance.”
—Amelia E. Barr (1831–1919)