Tiberius the Rhetorician was a Greek orator of the 1st century CE, active during the Roman era. The epithet "the Rhetorician" distinguishes him as a teacher or practitioner of rhetoric. He lived in a period of significant Greek rhetorical activity under the Roman Empire, though no specific biographical details survive.

He is credited with a single oration, but its title, content, and whether it survives are unrecorded. The designation of its format as "Oration" suggests it was a declamation or formal speech.

As a named rhetorician from this period, Tiberius attests to the continued vitality of Greek rhetorical training in the early Roman Empire. The absence of his work from the surviving corpus indicates he was not among the most influential figures whose writings were preserved through late antiquity.