Toggenburg
![](/Images/godic/202502/16/Karte_Wahlkreis_Toggenburg_20094333.png")
![View of the Thur and the church of Stein, facing north, with the Churfirsten visible in the backdrop.](/Images/godic/202502/16/2010-08-08_07-40-53_Switzerland_St._Gallen_Nesslau_Nesslau4333.jpg")
![Streusiedlung at the eastern end of the Toggenburg](/Images/godic/202502/16/Toggenburg_Ostende4333.jpg")
![Map of the historical territories of the Canton of St. Gallen. The former county of Toggenburg is shown in pink.](/Images/godic/202502/16/Teile_St_Gallen4333.png")
Toggenburg is a region of Switzerland. It corresponds to the upper valley of the river Thur and that of its main tributary, the Necker. Since 1 January 2003, Toggenburg has been a constituency (Wahlkreis) of the canton of St. Gallen (SFOS number 1727).