| Michael IX Palaiologos | |
|---|---|
| Emperor and Autocrat of the Romans | |
 Michael IX Palaiologos | |
| Emperor of the Byzantine Empire | |
| Reign | 1294 or 1295 – 12 October 1320 |
| Coronation | 1294 or 1295 |
| Predecessor | Andronikos II Palaiologos (alone) |
| Successor | Andronikos II Palaiologos (alone), Andronikos III (usurper in Macedonia, from 1321-1325) |
| Co-monarch | Andronikos II Palaiologos |
| Born | 17 April 1277 Constantinople, Byzantine Empire |
| Died | 12 October 1320 (aged 43) Thessaloniki, Byzantine Empire |
| Spouse | Rita of Armenia |
| Issue |
|
| House | Palaiologos |
| Father | Andronikos II Palaiologos |
| Mother | Anna of Hungary |
Michael IX Palaiologos or Palaeologus (Greek: Μιχαήλ Θ΄ Παλαιολόγος, Mikhaēl IX Palaiologos), (17 April 1277 – 12 October 1320, Thessalonica, reigned as Byzantine co-emperor with full imperial style 1294/1295–1320. Michael IX was the eldest son of Andronikos II Palaiologos and Anna of Hungary, daughter of Stephen V of Hungary.