Jasieniec [jaˈɕɛɲɛt͡s] is a village in the administrative district of Gmina Somianka, within Wyszków County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 kilometres (2 mi) south-west of Somianka, 14 km (9 mi) south-west of Wyszków, and 41 km (25 mi) north-east of Warsaw.