Sextus Julius may refer to:

• Any Sextus Julius Caesar (disambiguation)
• Sextus Julius Frontinus, better known as Frontinus, author of treatises on aqueducts and military tactics
• Sextus Julius Major, proconsul of Africa AD 141–142
• Sextus Julius Severus, a Roman governor in the 2nd century AD
• Sextus Julius Saturninus, praenomen possibly Gaius, one of the usurpers of Gallienus
• Sextus Julius Africanus, a Christian traveller and historian of the late 2nd and early 3rd century AD

This disambiguation page lists articles associated with the title Sextus Julius.
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