Battle of Buchach (Ukrainian: Битва за Бучач) was a battle fought between the Ukrainian Galician Army under the leadership of general Oleksander Hrekov and Polish forces during the Chortkiv offensive and Polish-Ukrainian war which lasted from 10 to 11 june 1919.

Ukrainian forces managed to liberate Buchach and Monastyrysk, while the Polish army retreated to Ternopil.

[1] After the Polish May offensive, two-thirds of the Ukrainian Galician Army was destroyed and most of Galicia and Volhynia were captured by Poland.

On June 8, Ukrainians defeated Polish forces at the battles of Yahilnytsia and Chortkiv.

Units of the Ukrainian II Corps [pl] approached the city.