William Cary

• William Cary, represented Mitchell
• William J. Cary, U.S. Representative from Wisconsin
• William L. Cary, Chairman of the U.S. Securities and Exchange Commission
• William Dennison Cary, founder and namesake of Cary, Illinois
• William Cary , English maker of scientific instruments
• William Cary, gentry; beheaded after Battle of Tewkesbury
• W. Sterling Cary, American Christian minister