Trzciniec [ˈtʂt͡ɕiɲɛt͡s] is a village in the administrative district of Gmina Radzanów, within Mława County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) east of Radzanów, 25 km (16 mi) south-west of Mława, and 98 km (61 mi) north-west of Warsaw.