The Pasłęka (Ger. Passarge) is a long river in Poland that debouches into the Baltic Sea on the Vistula Lagoon near Braniewo. It flows through the lake areas of Olsztyn and Mrągowo, and through Gdańsk Coastal Area.
The reported length of the river varies, depending on sources, from 169 to 211 kilometres (105 to 131mi).