William Barber, Bill Barber or Billy Barber may refer to:

• William Barber (cricketer) (1734–1805), English cricketer of the Hambledon Club
• William Barber (engraver) (1807–1879), Chief Engraver of the United States Mint
• William Barber (Ontario politician) (died 1889), Canadian businessman and politician
• Sir William Barber, 1st Baronet (1860–1927), English solicitor, property developer and philanthropist
• William E. Barber (1919–2002), United States Marine Corps colonel and Korean War recipient of the Medal of Honor
• William Henry Peter Barber (1857–1943), New Zealand politician
• Bill Barber, Canadian ice hockey player
• Bill Barber (musician), jazz musician

This disambiguation page lists articles associated with the same personal name. If an internal link led you here, you may wish to change the link to point directly to the intended article.