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. Population: 25,855 (2013 est.). It is located in the eastern part of the historical region of Podolia.
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.
Former hotel building in Haisyn
Second World War memorial
Coordinates: 48°48′37″N 29°23′3″E / 48.81028°N 29.38417°E