Apollonia (Greek: Ἀπολλωνία) was a town of Mygdonia in Macedon, south of Lake Bolbe (Athen. viii. p. 334, e.), and north of the Chalcidian mountains, on the road from Thessalonica to Amphipolis, as we learn from the Acts of the Apostles (xvii. 1) and the Itineraries. (Anton. Itin. pp. 320, 330; Itin. Hierosol. p. 605; Tab. Peuting.) Pliny the Elder (iv. 10. s. 17. § 38) mentions this Apollonia.