Trzcianka (German: Schönlanke) is a town in the Greater Poland region in Poland. Since 1999 it has belonged to Greater Poland Voivodeship and Czarnków-Trzcianka County. Previously it was in Pila Voivodeship (1975–1998). Trzcianka has 17,131 inhabitants (May 2007). From 1772 to 1945 the town was in Prussia, Germany and its name was Schönlanke.