Prince Semyon Yurievich of Halshany was a noble from the Olshanski family in the Grand Duchy of Lithuania.
- Occupation
- diplomat
- Position held
- Great Hetman of Lithuania, Q26714567, Starosta of Loutsk, Q71836988
- Citizenship
- Grand Duchy of Lithuania
- Born
- 1445
- Died
- 1505, March 3, 1505