Julius (fem. Julia) is the nomen of the gens Julia, an important family of ancient Rome supposed to have descended from Julus. (See also: Julio-Claudian dynasty - Julia Caesaris)

The name is also seen as Iulius and Iulia. There were many thousands of people bearing it, of course; a list of some of the most famous follows:

• Members of the Julio-Claudian Dynasty:
  • Gaius Julius Caesar, the dictator
  • Julius Caesar, the others
  • Gaius Julius Caesar Octavianus Augustus (by adoption)
  • Julia Augusta (by adoption)
  • Tiberius Julius Caesar (by adoption)
  • Germanicus Julius Caesar (by adoption)
  • Julius Caesar Nero , son of Germanicus and Agrippina
  • Julia Caesaris, several women related to Julius and Augustus Caesar
  • Gaius Julius Caesar Germanicus, aka Caligula
• Several other emperors:
  • Marcus Julius Verus Philippus
  • Gaius Julius Verus Maximinus
  • Julius Nepos
• Gaius Julius Eurycles
• Julius Atticus
• Julius Graecinus
• Gaius Julius Vindex , governor of Lusitania
• Gaius Julius Callistus
• Gaius Julius Alpinus Classicianus
• Gaius Julius Hyginus
• Sextus Julius Frontinus
• Julius Sacrovir , noble of Aedui
• Gaius Julius Civilis
• Gnaeus Julius Agricola, governor of Britannia
• Sextus Julius Africanus
• Gaius Julius Antiochus Epiphanes Philopappus , consul and Syrian prince
• Julius Paulus , jurist
• Gaius Julius Solinus, grammarian 3rd century
• Julius Exsuperantius , historian 4th century
• Julius Obsequens, ancient UFO writer

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The name lives on as a personal name.

• Pope Julius I
• Pope Julius II
• Pope Julius III

Pope Julius is a card game.