(Ῥάσκος), was one of the two chieftains of a Thracian clan. In the civil wars of Rome, B. C. 43, 42, he espoused the party of Augustus and M. Antony, while his brother Rhascuporis embraced that of Brutus and Cassius. After the victory of the triumvirs at Philippi, Rhascus obtained from the conquerors his brother's pardon. (Appian, App. BC 4.87, 104, 136.)