Haisyn or Haysyn (Ukrainian: Га́йсин, Haysyn; Polish: Hajsyn; Russian: Га́йсин, Gaysin) is a town in central Ukraine, the administrative center of the Haisyn Raion in Vinnytsia Oblast. Its population is 25,920. (2015 est.) It is located in the eastern part of the historical region of Podolia.
|Time zone||UTC+2 (EET)|
|• Summer (DST)||UTC+3 (EEST)|
Hajsyn was first mentioned in 1545. Since 1566 it was part of the Bracław Voivodeship of Poland. In 1744, King Augustus III granted Hajsyn city rights. It was a royal city of Poland. After the Second Partition of Poland in 1793 it was annexed by the Russian Empire.
- "Чисельність наявного населення України (Actual population of Ukraine)" (PDF) (in Ukrainian). State Statistics Service of Ukraine. Retrieved 1 July 2016.