William Long

• 2009 Little Rock recruiting office shooting
• Barnstaple (UK Parliament constituency)
• Bill Long (disambiguation)
• Brock Long
• Rye (UK Parliament constituency)
• William Henry Long
• William Houston Long
• William Ivey Long
• William J. Long
• William Long (Australian politician)
• William Long (New South Wales politician)
• William Long (Northern Ireland politician)
• William Long (died c.1426)
• William Long (fl.1388)
• William Long (mayor)
• William Long (priest)
• William Long (rowing)
• William Long (surgeon)
• rowing at the 1960 Summer Olympics