Potamo or Potamon (Greek: Ποτάμων ὁ Μυτιληναῖος; around 65 BC–around AD 25)[1]) of Mytilene in Lesbos,[2] son of Lesbonax the rhetorician, was himself a rhetorician in the time of the Roman emperor Tiberius, whose favour he enjoyed.[3] He is mentioned by Plutarch as an authority regarding Alexander the Great.[4] It is probably he whom Lucian states to have attained the age of ninety.[5]
When his son was killed, according to Seneca the Elder, he delivered a speech on the suasoria relating to the Spartans deliberating whether to flee Thermopylae wherein he exhorted the Spartans against flight, in contrast to his rival Lesbocles,[1] who shut down his school of rhetoric after the death of his son.[6] His city sent him on embassies to Rome in 45 and 25 BC.[1]