PIERIA (anc. geog.), a district of Macedonia, contained between the mouths of the rivers Ludias and Penceus; extended by Strabo beyond the Ludias, to the river Axion on the north, and on the south no farther than the Aliacmon, along the west side of the Sinus Thermaicus.—Another Pieria of Syria, the north part of Seleucia, or the Antiochenas, situated on the Sinus Issicus, and lying next Cilicia to the north-west.