Septimius Antiochus (Greek: Άντίοχος; died after 273) was a Roman usurper in Syria during the 3rd century.
In 272 AD, Emperor Aurelian had defeated the breakaway Kingdom of Palmyra; its king, Vaballathus, and his mother, Zenobia, were in Roman captivity.
[1] While the rebels waited, they decided to elevate Septimius Antiochus, the reputed son of Zenobia, to the purple.
When the emperor received Marcellinus' letter, he acted quickly, and the city was restored to Roman rule in the spring of 273.
[2]: 152 Antiochus claimed to be descended from Queen Cleopatra VII of Egypt and the kings of Syria.