Hellespontine Phrygia was an Achaemenid satrapy in ancient Anatolia, comprising lands of Troad, Mysia and Bithynia and whose seat was at Daskyleion, south of Cyzicus, Mysia. Pharnabazus was satrap of Darius III there, until Alexander the Great appointed Calas which was replaced by Arrhidaeus in the treaty of Triparadisus . According to Strabo Hellespontine and Phrygia Epictetus comprise Lesser Phrygia (Mysia). Others geographers arranged it differently.
- Sparta and Persia: Lectures Delivered at the University of Cincinnati (Cincinnati Classical Studies) (Hardcover) by D. M. Lewis Page 51 ISBN 90-04-05427-8 (1977)
- Philip Yorke, 2nd Earl of Hardwicke et al., Athenian Letters, or the epistolary correspondence of an agent of the king of Persia, residing at Athens during the Peloponnesian war, Geographical Index Asia Minor