William Barrett

• Bill Barrett
• Bill Barrett (disambiguation)
• William A. Barrett
• William Barratt
• William Barratt (manufacturer)
• William Barret
• William Barrett (antiquarian)
• William Barrett (consul)
• William Barrett (philosopher)
• William Barrett (priest)
• William Cross Barratt
• William Daniel Barrett
• William E. Berrett
• William Edmund Barrett
• William Emerson Barrett
• William F. Barrett
• William Hale Barrett
• William Lewis Barrett
• William N. Barrett