| 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 |
| 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.