Achaeans are the inhabitants of Achaea in Greece. However, the meaning of Achaea changed during the course of Ancient history, and thus Achaeans may refer to:
Achaeans (Homer), a name used by Homer in the Iliad for Mycenaean-era Greeks in general Achaeans (tribe), one of the major tribes of Greece according to the Hesiodic foundation myth Achaea (ancient region) Achaea Phthiotis, a region of ancient Thessaly Achaean League Achaea, the modern Greek administrative unit
See also Achaea (disambiguation) Achaean War