- a river in Poland, flowing N from the Carpathian Mountains past Warsaw into the Baltic near Danzig. About 650 miles (1,050 km) long.
- a river in central and N Poland, rising in the Carpathian Mountains and flowing generally north and northwest past Warsaw and Torun, then northeast to enter the Baltic via an extensive delta region. Length: 1090 km (677 miles)
- a shallow lagoon on the SW coast of the Baltic Sea, between Danzig and Kaliningrad, crossed by the border between Poland and Russia
