Amphicrates (Ancient Greek: Ἀμφικράτης) was an early king of Samos (fl.
Herodotus mentions Amphicrates in passing to explain why the people of Aegina enslaved a group of Samian exiles around 525 BC.
He says that they did this because they remembered that King Amphicrates of Samos had led an attack on Aegina in which he "did the Aeginetans great harm and suffered great harm in turn.
At some point, the Samian kingship was overthrown and replaced with an oligarchy ruled by a group called the Geomoroi ('land-sharers').
J. P. Barron and G. Shipley suggest that the Geomoroi overthrew the Samian in response to Amphicrates' failure on Aegina; but another source, Plutarch, says that the king that they overthrew was called Demoteles (perhaps Amphicrates' successor).