Mysłownia Nowa [mɨˈswɔvɲa ˈnɔva] is a village in the administrative district of Gmina Gostynin, within Gostynin County, Masovian Voivodeship, in east-central Poland. It is situated approximately 5 kilometres (3 mi) east of Gostynin and 103 km (64 mi) west of Warsaw.