Gniewkowo (Polish pronunciation: [ɡɲɛfˈkɔvɔ]; German: Argenau) is a town in Inowrocław County, Kuyavian-Pomeranian Voivodeship, Poland with a population of 7,301 inhabitants (2005).

In 1408 the city hosted a meeting between Polish King Władysław II Jagiełło and the Teutonic Knights over the disputed Dobrzyń Land.

Jews and Germans became more and more prominent, while the local Polish population suffered from an official policy of discrimination and forced Germanisation.

During the German invasion of Poland, which started World War II, the town was captured by Germany on September 2, 1939.

[3] During the subsequent German occupation the local Polish population was subjected to various crimes, including massacres, expulsions, deportations to forced labour and to Nazi concentration camps.

[2] Around 4,000 Polish civilians taken from Gniewkowo and the nearby cities of Inowrocław, Bydgoszcz and Toruń were executed by the Nazi Germans in the woods surrounding the town.

Among the victims were Polish teachers, principals, farmers, musicians, railwaymen, local officials (see Intelligenzaktion).