Simmias was a Greek officer in the service of Ptolemy III Euergetes, king of Egypt, who was sent by him to explore the shores of the Red Sea and the coasts of Ethiopia. Much of the information recorded by the geographer Agatharchides was derived from his authority.
- (Diod. iii. 18.)
This article incorporates text from a publication now in the public domain: Bunbury, Edward Herbert (1870). "Simmias". In Smith, William (ed.). Dictionary of Greek and Roman Biography and Mythology.