Reign 219–215 BC Name Agesipolis III Successor none Died 183 BC | Dynasty Agiad Father Agesipolis | |
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Agesipolis III (Greek: Ἀγησίπολις Γʹ) was the 31st and last of the kings of the Agiad dynasty in ancient Sparta.

He was the son of another Agesipolis and grandson of Cleombrotus II and Chilonis, daughter of Leonidas II and Cratesiclea. After the death of Cleomenes III he was elected king while still a minor, and placed under the dubious guardianship of an uncle named Cleomenes. Agesipolis was, however, soon deposed by his colleague Lycurgus. In 195 BC, he was at the head of the Lacedaemonian exiles, who joined Titus Quinctius Flamininus in his attack upon Nabis, the tyrant of Lacedaemon (see War against Nabis). Agesipolis was a member of an embassy sent about 183 BC to Rome by the Lacedaemonian exiles, and, with his companions, was intercepted by pirates and killed.