William Byrd (circa 1540–1623) was an English composer.

William Byrd may also refer to:

• William Byrd I (1652–1704), Virginia colonist
• William Byrd II (1674–1744), colonial Virginia planter, author, and founder of Richmond
• William Byrd III (1728–1777), American racehorse owner
• William Byrd (baseball player) (1907–1991), American professional baseball player
• William Byrd Traxler Jr. (born 1948), federal judge on the U.S. Court of Appeals for the Fourth Circuit
• William Byrd, African-American man who was lynched in Brentwood, Georgia on May 28, 1922
• William A. Bird, often spelled Byrd, state legislator in Florida
• William M. Byrd (1819–1874), justice of the Supreme Court of Alabama

• William Byrd Hotel
• William Byrd High School
• William Byrd Community House
• William Bird (disambiguation)

This disambiguation page lists articles about people with the same name.
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