Jasionowa Dolina [jaɕɔˈnɔva dɔˈlina] is a village in the administrative district of Gmina Janów, within Sokółka County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 3 kilometres (2 mi) north-west of Janów, 22 km (14 mi) north-west of Sokółka, and 41 km (25 mi) north of the regional capital Białystok.