| Helen of Bosnia | |
|---|---|
| Queen regnant of Bosnia | |
| Reign | September 1395 – April 1398 |
| Predecessor | Dabiša |
| Successor | Ostoja |
| Queen consort of Bosnia | |
| Tenure | 1391–95 |
| Born | c. 1345 |
| Died | after 18 March 1399 |
| Spouse | Dabiša, King of Bosnia |
| House | Nikolić (by birth) Kotromanić (by marriage) |
Helen (Serbo-Croatian: Jelena/Јелена; c. 1345 – after 18 March 1399), also known by the name Gruba/Груба, ruled the Kingdom of Bosnia from September 1395 until late April or early May 1398. She was queen consort as the wife of King Dabiša, and was chosen by the stanak to rule after his death. Whether she was a regent who ruled during an interregnum or a queen regnant is disputed, but in any case the real power was held by magnates of the kingdom. Her rule ended with the election of King Ostoja.