Gaius Musonius Rufus (/ˈruːfəs/, Greek: Μουσώνιος Ῥοῦφος) was a Roman Stoic philosopher of the 1st century AD.
He taught philosophy in Rome during the reign of Nero, as consequence of which he was sent into exile in 65 AD, only returning to Rome under Galba.
He was allowed to stay in Rome when Vespasian banished all the other philosophers from the city in 71 AD, although he was eventually banished anyway, only returning after Vespasian's death.
A collection of extracts from his lectures still survives. He is also remembered for being the teacher of Epictetus