Wąbrzeźno [vɔmˈbʐɛʑnɔ] (German:Briesen) is a town in Poland, in the Kuyavian-Pomeranian Voivodeship, about 35 kilometres (22 miles) northeast of Toruń. It is the capital of the Wąbrzeźno County. The population is 13,971 inhabitants (2004).

The town is the birthplace of Walther Nernst, a chemist who in 1920 received the Nobel Prize in Chemistry for the Nernst equation, which gives the standard electrode potential of an electric cell containing various concentrations of electrolytes.