Kołczyn [ˈkɔu̯t͡ʂɨn] is a village in the administrative district of Gmina Rokitno, within Biała Podlaska County, Lublin Voivodeship, in eastern Poland, close to the border with Belarus. It lies approximately 11 kilometres (7 mi) east of Rokitno, 24 km (15 mi) north-east of Biała Podlaska, and 114 km (71 mi) north-east of the regional capital Lublin.