| Barbara | |
|---|---|
 | |
| Queen consort of Hungary | |
| Tenure | 1405–1437 |
| Coronation | 1408 |
| Queen consort of the Romans | |
| Tenure | 1411–1437 |
| Coronation | 1414 |
| Queen consort of Bohemia | |
| Tenure | 1419–1437 |
| Coronation | 1437 |
| Holy Roman Empress | |
| Tenure | 1433–1437 |
| Coronation | 1433 |
| Born | 1392 Celje, County of Cilli (now Slovenia) |
| Died | 11 July 1451 Mělník, Bohemia, Crown of Bohemia (now Czech Republic) |
| Spouse | Sigismund, Holy Roman Emperor |
| Issue | Elizabeth of Luxembourg |
| House | House of Cilli |
| Father | Herman II, Count of Celje |
| Mother | Countess Anna of Schaunberg |
Barbara of Cilli or Barbara of Celje (Hungarian: Cillei Borbála, German: Barbara von Cilli, Slovenian and Croatian: Barbara Celjska, 1392 – 11 July 1451), was the Holy Roman Empress and Queen of Hungary and Bohemia by marriage to Holy Roman Emperor Sigismund. She was actively involved in politics and economy of her times, independently administering large feudal fiefdoms and taxes, and was instrumental in creating the famous royal Order of the Dragon. She served as the regent of Hungarian kingdom in the absence of her husband four times: in 1412, 1414, 1416, and 1418.