George Barclay

• George Barclay (Jacobite), leader of a 1696 plot to assassinate King William III of England
• George Barclay (clergyman), Baptist minister in Upper Canada
• Sir George Head Barclay, British diplomat
• George Barclay (sportsperson), American baseball and football player, inventor of the first football helmet
• George T. Barclay, American football player and coach
• George Barclay (RAF officer), British pilot who was killed in action on the battle of El Alamein; author of Angels 22
• George Barclay (speedway rider), British motorcycle speedway rider and founder of the National Speedway Museum
• George Barclay (MP), English politician
• Pen name of Ronald Kinnoch