Mopsus (/ˈmɒpsəs/; Ancient Greek: Μόψος, Mopsos) was the name of one of two famous seers in Greek mythology; his rival being Calchas. A historical or legendary Mopsos or Mukšuš may have been the founder of a house in power at widespread sites in the coastal plains of Pamphylia and Cilicia (in today's Turkey) during the early Iron Age.