Brześć Kujawski is a town located in the Kuyavian-Pomeranian Voivodeship in central Poland. Situated along the Zgłowiączka River, the town has a population of 4,527 as of December 2021.
Historically, the town served as a royal seat of Kuyavia. It was also the seat of one of two small duchies into which the region was temporarily divided.