Jacowlany [jat͡sɔˈvlanɨ] is a village in the administrative district of Gmina Sidra, within Sokółka County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 8 kilometres (5 mi) south of Sidra, 10 km (6 mi) north of Sokółka, and 46 km (29 mi) north-east of the regional capital Białystok.