William Barnes (disambiguation)

• Bill Barnes
• Bill Barnes (footballer)
• Billy Barnes (cricketer)
• Billy Barnes (disambiguation)
• Ernest Barnes
• Florida Comptroller
• James William Barnes Steveni
• Wigan (UK Parliament constituency)
• William Barne (disambiguation)
• William Barnes
• William Barnes (baseball)
• William Barnes (boxer)
• William Barnes (died 1558)
• William Barnes (died 1559)
• William Barnes (entomologist)
• William Barnes (labour leader)
• William Barnes (sport shooter)
• William Barnes Jr.
• William Barnes Rhodes
• William Barnes Sr.
• William D. Barnes
• William D. Barnes (Florida)
• William F. Barnes
• William G. Barnes
• William H. Barnes (Medal of Honor)
• William H. Barnes (Wisconsin)
• William H. Barnes (jurist)
• William Sullivan Barnes
• William Thomas Barnes