Mamonovka

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River in Russia, Poland

54°29′00″N 19°52′01″E / 54.48333°N 19.86694°E / 54.48333; 19.86694

The Mamonovka or Banovka (Russian: Мамоновка, Polish: Banówka, German: Bahnau) is a river between Russia (Kaliningrad Oblast) and Poland (Warmian-Masurian Voivodship). It flows into the Vistula Lagoon. It is 51 km long and has a 311 km² drainage basin.

The Ignatievka River and the Vitushka River are tributaries of the Mamonovka.