Lack [lat͡sk] is a village in the administrative district of Gmina Hanna, within Włodawa County, Lublin Voivodeship, in eastern Poland, close to the border with Belarus. It lies about 9 kilometres (6 mi) southwest of Hanna, 14 km (9 mi) northwest of Włodawa and 76 km (47 mi) northeast of the regional capital Lublin.

In 1997, Lack had a population of 780.