Pieńki-Sobótki [ˈpjɛɲki sɔˈbutki] is a village in the administrative district of Gmina Andrzejewo, within Ostrów Mazowiecka County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) south-east of Andrzejewo, 22 km (14 mi) east of Ostrów Mazowiecka, and 106 km (66 mi) north-east of Warsaw.