The Laeaeans were a Paionian tribe that lived adjacent to the Agrianes, another Paionian tribe, along the upper course of the Strymon river, at the western edge of Thrace. They were not incorporated into the Odrysian state or the Paionian state, remaining an independent tribe outside the borders of those kingdoms. The Laeaeans, along with the Agrianes, the Thracian Dii, and other tribes, joined Sitalkes in his (unsuccesful) campaign against Perdiccas II of Macedon.