The Rhodian Peraea or Peraia (Ancient Greek: ἡ τῶν Ῥοδίων περαία, lit. 'peraia of the Rhodians') was the name for the southern coast of the region of Caria in western Asia Minor during the 5th–1st centuries BC, when the area was controlled and colonized by the nearby island of Rhodes.
Already in Classical times, before their synoecism and creation of the single Rhodian state in 408 BC, the three city-states of Rhodes, Lindos, Ialyssos, and Kameiros, separately possessed territory on the mainland of Asia Minor. This comprised the Cnidian Peninsula (but not Cnidus itself), as well as the nearby Trachea peninsula and its neighbouring region to the east. Like Rhodes, these territories were divided into demes, and their citizens were Rhodian citizens.