Diocese of Macedonia

Diocese of Macedonia Dioecesis Macedoniae Διοίκησις Μακεδονίας
Diocese of the Roman Empire
306–7th century
Capital	Thessalonica
Historical era	Late Antiquity
• Reforms of Diocletian	306
• Thessalonica became the Prefecture's new capital city	379
• Slavic invasion of the Balkans	7th century
Today part of	Albania  Greece  North Macedonia  Bulgaria

The Diocese of Macedonia (Latin: Dioecesis Macedoniae; Greek: Διοίκησις Μακεδονίας) was a diocese of the later Roman Empire, forming part of the praetorian prefecture of Illyricum. Its administrative centre was Thessalonica.