Liubartas or Demetrius of Liubar was a Lithuanian prince from the Gediminid dynasty. He was the prince of Volhynia, and from 1320, he ruled over Lutsk, Liubar and Zhytomyr. Liubartas was also the last ruler of the Kingdom of Galicia–Volhynia.
- Occupation
- politician
- Position held
- Prince of Lutsk
- Citizenship
- Grand Duchy of Lithuania
- Born
- 1300
- Died
- 1383, 1384, 1384