Aristeus (), son of Adeimantus (Ἀδείμαντος; "Adeímantos"), was a Corinthian general who commanded the expedition to Potidaea in 432 BC. After the Athenians broke a truce with the Corinthians at Sybota, his primary goal was to defend Potidaea from an Athenian attack. He then went on to defend the Corinthian colony from Athens during the Battle of Potidaea in 432 BC, until he was left with no option but to leave the colony with the Chalcidians. In 430 BC he traveled to Thrace with Spartan envoys where they were discovered by Athenians and brought to Athens, by Athenian ambassadors, where they were promptly killed without a trial. After Aristeus' death, Athens seized Potidaea in 430/429 BC during the Peloponnesian War, the battles of Sybota and Potidaea being two main catalysts for the war.