Dubów is a village in the administrative district of Gmina Łomazy, within Biała Podlaska County, Lublin Voivodeship, in eastern Poland. It lies approximately 8 kilometres (5 mi) north of Łomazy, 9 km (6 mi) south-east of Biała Podlaska, and 90 km (56 mi) north-east of the regional capital Lublin.