Henry III

Henry III may refer to:

• Henry III, Duke of Bavaria (940–989)
• Henry III, Holy Roman Emperor (1017–1056)
• Henry the Lion, Henry III of Saxony, (1129–1195)
• Henry III of England (1207–1272)
• Henry III, Count of Champagne, (1244–1274), also King Henry I of Navarre
• Henry III, Margrave of Meissen (1215–1288)
• Henry III, Prince of Anhalt-Aschersleben (d. 1307)
• Henry III, Duke of Mecklenburg (c. 1337-1383)
• Henry III of Castile (1379–1406)
• Henry III of Nassau-Breda (1483–1538)
• Henry III of France (1551–1589), also King of Poland and Grand Duke of Lithuania
• Henry III of Navarre (1553–1610), later King Henry IV of France