Gniew (Kashubian: Gniéw, German: Mewe) is a town on the left bank of the Vistula River, in the Pomeranian Voivodeship, Poland.
The most notable landmark of the town is the castle built by the Teutonic Order. Built at the turn of the 14th century it originally served as the seat of Teutonic knights, and later, under Polish rule, it was home to the local district governor (starost), including Jan Sobieski.