| Margaret of Hungary | |
|---|---|
| Empress consort of the Byzantine Empire | |
| Tenure | 1185–1195 |
| Tenure | 1203–1204 |
| Queen consort of Thessalonica | |
| Tenure | 1205–1207 |
| Born | 1175 |
| Died | after 1223 |
| Spouse | Isaac II Angelos Boniface of Montferrat Nicholas of Saint Omer |
| Issue | Manuel Angelos John Angelos Demetrius of Montferrat Bela of Saint Omer William of Saint Omer |
| House | House of Árpád |
| Father | Béla III of Hungary |
| Mother | Agnes of Antioch |
Margaret of Hungary (Margit in Hungarian; 1175 – after 1223) was a Byzantine Empress by marriage to Isaac II Angelos and Queen of Thessalonica by marriage to Boniface of Montferrat. She was regent of Thessalonica during the minority of her son Demetrius of Montferrat in 1207–1216.