Chariopolis was a town in the Roman province of Europa, corresponding to present-day Hayrabolu in European Turkey.
Nothing is known about this city during antiquity. In 1087 it was plundered by Tselgou and Solomon, Kings of the Patzinaces and of the Hungarians. In 1205 Villehardouin passed through there, after the unsuccessful siege of Adrianople.
Bishopric
Chariopolis became the seat of a bishopric at a relatively late date, appearing in a Notitia Episcopatuum for the first time in the 10th century as a suffragan of the metropolitan see of Heraclea in Europa, the capital of the province.
The first bishop of Chariopolis whose name is known is Theophylactus, who attended the Second Council of Nicaea in 787. Cosmas was at the Photian Council of Constantinople (879). Diocesan bishops later than the East–West Schism include two unnamed ones who attended councils called by Patriarch Athanasius I of Constantinople (1289–1293 and 1303–1309) and by Patriarch Callistus I of Constantinople in 1351.
It is not known when, after the Ottoman conquest, the see ceased to be a residential one for the Greek Orthodox Church, which continued to use the name frequently for titular bishops.
No longer a residential bishopric, Chariopolis is today listed by the Catholic Church as a titular see.