Brwilno Dolne [ˈbrvilnɔ ˈdɔlnɛ] is a village in the administrative district of Gmina Nowy Duninów, within Płock County, Masovian Voivodeship, in east-central Poland. It lies approximately 9 kilometres (6 mi) south-east of Nowy Duninów, 8 km (5 mi) west of Płock, and 104 km (65 mi) west of Warsaw.