Gnaeus Claudius Severus Arabianus (113 – after 176) was a senator and philosopher who lived in the Roman Empire.
When Severus had come to Rome during the reign of Emperor Hadrian (117-138), he had become a philosophical mentor and a teacher to Roman noble students.
In Rome, Severus assumed a reputation as a man of spirit and as a great philosophical mentor.
He was a follower of peripatetic philosophy and later served as an ordinary consul in 146 in the reign of Antoninus Pius (138-161).
Severus was evidently a politician with a deep interest in political philosophy, as evidenced by Marcus Aurelius’ opinion of him in Meditations (1.14n):