Klesztów is a village in the administrative district of Gmina Żmudź, within Chełm County, Lublin Voivodeship, in eastern Poland. It lies approximately 3 km north-east of Żmudź, 20 km south-east of Chełm, and 83 km east of the regional capital Lublin. In Klesztów, there is a former Uniate, now Roman Catholic, church of the Assumption of Mary with illusionistic monumental paintings (1772) signed by painter Gabriel Sławiński. He also could be the author of two icons in the side altars (Saint Luke Evangelist, The Communion of Saint Onuphrius).