Julius Iullus was the name of a branch of the gens Julia in ancient Rome. The Iulus or Iullus branch was older than the more famous branch of Julii Caesares, who may have been an offshoot. Iulii Iulli include:
Lucius Julius Iulus was Magister Equitum in 430 BC, and consul in 430. Cicero has the praenomen as Gaius. He and his consular colleague Papirius Crassus granted an eight-year truce to the Aequi, and passed legislation that allowed fines to be paid in cash (pecunia) instead of livestock (pecudes).
several other Lucius Julius Iulus, who were consular tribunes from 403 BC to 379 BC.
several men named Gaius Julius Iulus.
Sextus Julius Iulus, consular tribune in 424 BC.
