Studzieniec [stuˈd͡ʑɛɲɛt͡s] is a village in the administrative district of Gmina Sierpc, within Sierpc County, Masovian Voivodeship, in east-central Poland.^[1] It lies approximately 3 kilometres (2 mi) south-west of Sierpc and 117 km (73 mi) north-west of Warsaw.