Jasion [ˈjaɕɔn] is a village in the administrative district of Gmina Żarnów, within Opoczno County, Łódź Voivodeship, in central Poland. It lies approximately 6 kilometres (4 mi) south of Żarnów, 22 km (14 mi) south of Opoczno, and 81 km (50 mi) south-east of the regional capital Łódź.