William Steuart

William Steuart may refer to:

Scotland

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

Maryland

 * 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