William Steuart may refer to:

Scotland[edit]

• William Steuart (British Army officer) (1643–1726), Scottish general
• William Steuart (Scottish politician) (1686–1768), Scottish lawyer, member of parliament 1713–41

Maryland[edit]

• William Frederick Steuart 1816–1889 (1816–1889), Confederate surgeon
• William Steuart (Mayor of Baltimore) (1754–1838), mayor of Baltimore
• William Steuart (planter) (1754–1838), Maryland planter

See also[edit]

• Billy Steuart (born 1936), South African swimmer
• William Stewart (disambiguation)
• William Stuart (disambiguation)