William Stanley

• Bill Stanley (disambiguation)
• William A. Stanley
• William E. Stanley
• William O. Stanley
• William Owen Stanley
• William Stanley (1640–1670)
• William Stanley (Battle of Bosworth)
• William Stanley (Elizabethan)
• William Stanley (Hawaii)
• William Stanley (MP for Southampton)
• William Stanley (composer)
• William Stanley (football manager)
• William Stanley (inventor)
• William Stanley (mammalogist)
• William Stanley (priest)
• William Stanley, 3rd Baron Monteagle
• William Stanley, 6th Earl of Derby
• William Stanley, 9th Earl of Derby
• William Stanley, Jr.
• William Stillman Stanley, Jr.