William Barber
William Barber, Bill Barber or Billy Barber may refer to:
Politicians
- William Barber, Member of Parliament for Bedford
- William Barber, MP for Dunwich
- William Barber , Canadian businessman and politician
- William Alonzo Barber, Wisconsin politician, soldier, businessman, banker, and educator
- William Barber , New Zealand MP
- William P. Barber, justice of the Connecticut Supreme Court
Sports
- William Barber , English cricketer of the Hambledon Club in the 1760s and 1770s
- William Barber , English cricketer, played for Sheffield
- William Barber , English cricketer who played for Nottinghamshire
- William Barber , English cricketer
- William Barber , English cricketer
- Bill Barber, Canadian ice hockey player
- Bill Barber , American tennis player
- Billy Barber , Australian boxer
Musicians
- Bill Barber , jazz musician
- Billy Barber, keyboardist and composer
Others
- William Barber II, minister and social activist
- William Barber , Chief Engraver of the United States Mint
- Sir William Barber, 1st Baronet, English solicitor, property developer and philanthropist
- William E. Barber, United States Marine Corps colonel and Korean War recipient of the Medal of Honor
- William Swinden Barber, Gothic Revival and Arts and Crafts architect