Zalesie Śląskie [zaˈlɛɕɛ ˈɕlɔ̃skʲɛ] is a village in the administrative district of Gmina Leśnica, within Strzelce County, Opole Voivodeship, in south-western Poland.

The village was first mentioned under its Old Polish name Zalese in 1223, when it was part of fragmented Piast-ruled Poland.

[2] Its name comes from the Polish word las, which means "forest", and is typical of the area.

In the final stages of World War II, in May 1945, a group of Polish and Soviet prisoners of war from the German Stalag VIII-A prisoner-of-war camp was liberated in the village by the advancing Soviet troops.

[3] Afterwards the village became again part of Poland, and its historic name was restored, with the addition of the adjective Śląskie after the region of Silesia within which it is located, for distinction from other settlements with the same name.