Turns out yes, there is:
https://en.wikipedia.org/wiki/Cleon
"Cleon (/ˈkliːɒn, -ən/; Ancient Greek: Κλέων Kleon, Ancient Greek: [kléɔːn]; died 422 BC) was an Athenian general during the Peloponnesian War. He was the first prominent representative of the commercial class in Athenian politics, although he was an aristocrat himself. His contemporaries, the historian Thucydides and the comedic playwright Aristophanes, both represent him as an unscrupulous, warmongering demagogue, but both of them had strong motives to present Cleon unfavorably. "
Also: "His influence lay in his forceful and bullying style of oratory, anti-intellectual and anti-aristocratic in tone, and his populism."