Spartocus III (Greek: Σπάρτοκος, romanized: Spartokos) was king of the Bosporan Kingdom from 304 to 284 BC.
He succeeded to the throne after the death of his father Eumelus in a carriage accident.
[1] Upon assuming the throne, he became the first Bosporan ruler to take the title of Basileus,[2] likely following the example of contemporary Hellenistic kings such as the Antigonids, Lysimachids, Seleucids and Ptolemies.
As soon as the Athenian trade was liberated from Demetrius, Spartocus sought to renew his relationship with Athens,[3][4] which had already been trade partners with the Bosporan Kingdom in the reign of his great-grandfather Leukon.
Spartocus received Athenian honors, thanking him and his predecessors for maintaining good relations with Athens.