Eordaea (also spelled Eordaia or Eordia, Greek: Ἐορδαία) was a geographical region of Upper Macedonia and later an administrative region of the kingdom of Macedon. Eordaea was located south of Lynkestis, west of Emathia, north of Elimiotis, and east of Orestis. It was incorporated into the Argead kingdom of Macedon earlier than the rest of Upper Macedonia.
Eordaea stretched in the basin of Eordaia, the current homonymous municipality in Greece, which is named after the ancient region, and also in the southern part of the municipality of Amyntaio and the western part of the municipality of Edessa.
