Chmieleń Wielki (Polish pronunciation: [ˈxmjɛlɛj̃ ˈvjɛlkʲi]) is a village in the administrative district of Gmina Krzynowłoga Mała, within Przasnysz County, Masovian Voivodeship, in east-central Poland. It lies approximately 21 kilometres (13 mi) north-west of Przasnysz and 109 km (68 mi) north of Warsaw.

During Nazi Occupation it was part of New Berlin military training area