William Harrison may refer to:
- William Harrison (clergyman) (1534–1593), English clergyman
- William Harrison (poet) (1685–1713), English poet and diplomat
- William Harrison (instrument maker) (1728–1815), son of John Harrison, inventor of the chronometer.
- William Harrison, Jr. (c. 1750–1789), delegate for Maryland in the U.S. Continental Congress of 1786 and 1787
- William Harrison (merchant navy officer) (1812–1860), British merchant navy officer
- William Harrison (Canadian politician) (1834–1922), saddlemaker, historian and reeve of Richmond Hill, Ontario
- William Harrison (Welsh footballer) (1872–1920), Wrexham F.C. and Wales international footballer
- William Harrison (author) (born 1933), author of "Roller Ball Murder" and the screenplay for Rollerball
- William Harrison (physician) (1935–2010), American obstetrician
- William Alistair Harrison (born 1954), Governor of Anguilla
- William B. Harrison (1889–1948), mayor of Louisville, Kentucky
- William B. Harrison, Jr. (born 1943), chairman and CEO of JP Morgan Chase
- William C. Harrison, chairman of North Carolina board of education
- Billy Harrison (William Ewart Harrison, 1886–1948), English football player
- William Greer Harrison (1836–1916), member of the Committee of Fifty after the 1906 San Francisco earthquake
- William H. Harrison (Wyoming Congressman) (1896–1990), American politician who served as a Republican U.S. representative from Wyoming
- William Hendy Harrison (1863–1939), English cricketer
- William Henry Harrison (1773–1841), ninth President of the United States
- William Henry Harrison (businessman) (1892–1956), American general and businessman
- William Henry Harrison (cricketer) (1866–1936), English cricketer
- William Henry Harrison (New Zealand politician) (1831–1879), New Zealand politician
- William Kelly Harrison (1870–1928), United States Navy officer and Medal of Honor recipient
- William Leeming Harrison (1897–1960), Canadian fighter ace in World War I
- William P. Harrison (1830–1895), Methodist minister and theologian, Chaplain of the United States House of Representatives
- William Harrison (bishop) (1837–1920), Anglican bishop
- Billy Harrison (rugby league) (William Rapihana Harrison), rugby league footballer of the 1960s for New Zealand, and Wellington
- "Victim" of a 1660 murder found alive two years later; see The Campden Wonder
Famous quotes containing the word harrison:
“The admission of the States of Wyoming and Idaho to the Union are events full of interest and congratulation, not only to the people of those States now happily endowed with a full participation in our privileges and responsibilities, but to all our people. Another belt of States stretches from the Atlantic to the Pacific.”
—Benjamin Harrison (1833–1901)