Marianki [maˈrjaŋki] is a village in the administrative district of Gmina Stromiec, within Białobrzegi County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) south of Stromiec, 11 km (7 mi) east of Białobrzegi, and 67 km (42 mi) south of Warsaw.