William Condon

• William Condon (pirate), 18th-century English pirate
• William F. Condon, American politician from New York
• William H. Condon, American politician from Illinois
• William Joseph Condon, American prelate of the Roman Catholic Church
• William S. Condon, researcher into human interactions
• Bill Condon, American screenwriter and director
• Bill Condon (footballer), Australian rules footballer for South Melbourne