Kościeniewicze [kɔɕt͡ɕɛɲɛˈvʲit͡ʂɛ] is a village in the administrative district of Gmina Piszczac, within Biała Podlaska County, Lublin Voivodeship, in eastern Poland. It lies approximately 5 kilometres (3 mi) west of Piszczac, 16 km (10 mi) south-east of Biała Podlaska, and 95 km (59 mi) north-east of the regional capital Lublin.