Ariston of Alaea (), an otherwise unknown place (possibly Halaesa), was a rhetorician of ancient Greece who wrote, according to Diogenes Laërtius, scientific treatises on rhetoric.Diogenes Laërtius, Lives and Opinions of Eminent Philosophers 7.164

Another rhetorician of the same name, a native of Gerasa, is mentioned by Stephanus of Byzantium. Stephanus of Byzantium, Ethnica s.v. Γέρασα

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