A son of Xuthus and Creusa, the daughter of Erechtheus. He was the ancestor of the Achaeans, a people in the region of the Peloponnese. After the death of his uncle Aeolus in Thessaly, Achaeus went there and made himself master of Phthiotis, which received from him the name of Achaea.
- Aken, Dr. A.R.A. van. (1961). Elseviers Mythologische Encyclopedie. Amsterdam: Elsevier.
- Bartelink, Dr. G.J.M. (1988). Prisma van de mythologie. Utrecht: Het Spectrum.
- Pausanias. Description of Greece vii, 1.2.
- Pseudo-Apollodorus. The Library i, 7.3.
- Strabo. Geography viii, 383.