Frank Alexander

• Frank Alexander (actor), American silent film comedian and actor
• Frank Alexander (cricketer), Australian cricketer
• Frank A. Alexander, American Thoroughbred horse racing trainer
• Frank S. Alexander, professor of law at the Emory University School of Law
• Frank Alexander (American football), American football player
• Frank Alexander (veterinarian), British veterinarian
• Sir Frank Alexander, 1st Baronet, British shipowner and shipbroker