Olesko (Ukrainian: Олесько; Polish: Olesko) is a rural settlement in Zolochiv Raion, Lviv Oblast (region) of western Ukraine.

It was the seat of the rebbes of Alesk, and also the birthplace of Jan III Sobieski, the King of Poland and Grand Duke of Lithuania.

[4] Until 18 July 2020, Olesko belonged to Busk Raion.

[5][6] Until 26 January 2024, Olesko was designated urban-type settlement.

On this day, a new law entered into force which abolished this status, and Olesko became a rural settlement.