Antonius (fem. Antonia) was the nomen of the gens Antonia, one of the most important plebeian (meaning not patrician) families of ancient Rome. The family claimed descendancy from Anton, a son of the Greek god Hercules. Women of the family carried the name Antonia, according to the Roman naming convention. The Antonii produced several important Roman generals and politicians, listed below.

• Mark Antony (83 - 30 BC), ally of Julius Caesar, Triumvir and afterwards enemy of Caesar Augustus. Probably the most famous Antonius, his life is depicted in William Shakespeare's play Antony and Cleopatra

Other Antonii

• Iullus Antonius, Mark Antony's youngest son by Fulvia (died 2 BC)
• Gaius Antonius, Mark Antony's younger brother (died 42 BC)
• Gaius Antonius Hybrida, Mark Antony's uncle
• Lucius Antonius, Mark Antony's second younger brother
• Marcus Antonius Creticus, Mark Antony's father
• Marcus Antonius Orator, Mark Antony 's grandfather (died 87 BC)

Women

• Julia Antonia
• Antonia Major
• Antonia Minor
• Claudia Antonia

Others

• lex Antonia
• Patrik Antonius

• Emperors Gordian I, Gordian II and Gordian III were also members of the Antonius gens, although not directly related to the Republic protagonists cited above.

Families of Rome

Antonier | Antonius | Antonia gens | Gens Antonia | 安东尼氏族