Adeimantus may refer to:
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Adeimantus of Collytus, elder brother of Ancient Greek philosopher Plato
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Adeimantus of Corinth, Greek commander at the Battle of Salamis in 480 BC
*
Adeimantus (son of Leucolophides), one of the commanders with Alcibiades in his expedition against Andros in 407 BC
{{given name
Greek masculine given names