The epithet the Conqueror may refer to:

• Afonso I of Portugal (1109–1185), King of Portugal
• James I of Aragon (1208–1276), King of Aragon
• John V, Duke of Brittany (1339–1399), Duke of Brittany, also known as Jean le Conquéreur
• Mehmed II (1432–1481), Sultan of the Ottoman Empire
• Mahmud Hotak (1717–1725), Afghan Shah of Persia
• Thutmose III (c. 1477 BC–1425 BC), Egyptian pharaoh
• Valdemar II of Denmark (1170–1241), King of Denmark
• William the Conqueror (1028–1087), Duke of Normandy and King of England

• Aegon the Conqueror, a character in the A Song of Ice and Fire fantasy saga
• John the Conqueror, an African-American folk hero
• Kang the Conqueror, a Marvel Comics villain