(Σάδοκος), son of Sitalces, king of Thrace, was made a citizen of Athens, in B. C. 431, when the Athenians formed an alliance with his father. In the following year, the Athenian envoys at the court of Sitalces persuaded Sadocus to deliver up to them Aristeus and the other ambassadors, who were passing through Thrace on their way to Asia, to ask the aid of the Persian king against Athens (Thuc. 2.29, 67; comp. Hdt. 7.137; Arist. Ach. 145, &c.). The name occurs as Σάδωκος in the Scholiast on Aristophanes (l.c.).