Sir John Luttrell (c. 1518/19 – 10 July 1551) feudal baron of Dunster in Somerset, of Dunster Castle, was an English soldier, diplomat, and courtier under Henry VIII and Edward VI. He served under Edward Seymour, Earl of Hertford (later Duke of Somerset and Lord Protector) in Scotland and France. His service is commemorated in an allegorical portrait by Hans Eworth.