The epithet the Young may refer to:
People Basarab the Young (before 1444?–1482), Prince of Wallachia Haakon the Young (1232–1257), a junior king of Norway Harald Eiriksson, joint Earl of Orkney in the 12th century Ivan the Young (1458–1490), heir to the principality of Muscovy Valdemar the Young (c. 1209–1231), King of Denmark
Mythological and fictional persons Aengus, a god in Irish mythology Eorl the Young, first King of Rohan in Tolkien's Middle-earth
See also List of people known as the Elder or the Younger List of people known as the Old Henry the Young King (1155–1183), King of England, Duke of Normandy and Count of Anjou and Maine