Zastawie [zasˈtavjɛ] is a village in the administrative district of Gmina Zbiczno, within Brodnica County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 9 kilometres (6 mi) east of Zbiczno, 13 km (8 mi) north-east of Brodnica, and 69 km (43 mi) north-east of Toruń.