In 1570, Oleszyce became property of Voivode of Ruthenia, Hieronim Jarosz Sieniawski, who in 1576 established here a town named Hieronimów, based on Magdeburg rights.

After the First Partition of Poland, the town belonged to Austrian Galicia (1772–1918), but remained private property of the families of Działyński, Potocki, Potulicki and Sapieha.

A few days later, heavy fighting between the advancing Germans and retreating Polish 21st Mountain Infantry Division took place in the area of Oleszyce, in which General Józef Kustroń was killed (September 16).

On 15 November, Oleszyce was annexed to the Soviet Union as part of the Ukrainian SSR, and German-Soviet boundary was established a few kilometers north of the village (see also Molotov–Ribbentrop Pact).

[4] After World War II, the village and its area was affected by the activities of the Ukrainian Insurgent Army, which in the night of September 5/6, 1945, attacked Oleszyce with the rail station.