Tuczna [ˈtut͡ʂna] is a village in Biała Podlaska County, Lublin Voivodeship, in eastern Poland. It is the seat of the gmina (administrative district) called Gmina Tuczna. It lies approximately 28 kilometres (17 mi) south-east of Biała Podlaska and 93 km (58 mi) north-east of the regional capital Lublin.