Kwasówka [kfaˈsufka] is a village in the administrative district of Gmina Drelów, within Biała Podlaska County, Lublin Voivodeship, in eastern Poland. It lies approximately 4 kilometres (2 mi) south-east of Drelów, 20 km (12 mi) south-west of Biała Podlaska, and 77 km (48 mi) north of the regional capital Lublin.