Seleucia Pieria (Greek Σελεύκεια ἐν Πιερίᾳ, later Suedia), also known in English as Seleucia by the Sea, was a town in antiquity, the capital of Seleucus I Nicator, in Syria Prima. The city was built, slightly to the north of the estuary of the river Orontes, between small rivers on the western slopes of the Coryphaeus, one of the southern summits of the Amanus Mountains. The Macedonians called the landscape Pieria, after a district in their homeland that was also between the sea and a mountain range (the Olympus).

Seleucia Pieria (Greek Σελεύκεια ἐν Πιερίᾳ, later Suedia), also known in English as Seleucia by the Sea, was a town in antiquity, the capital of Seleucus I Nicator, in Syria Prima. The city was built, slightly to the north of the estuary of the river Orontes, between small rivers on the western slopes of the Coryphaeus, one of the southern summits of the Amanus Mountains. The Macedonians called the landscape Pieria, after a district in their homeland that was also between the sea and a mountain range (the Olympus).