Tornesch is a town located in the district of Pinneberg within the state of Schleswig-Holstein, Germany. Geographically, it is situated approximately 7 km (4 mi) southeast of Elmshorn and about 25 km (16 mi) northwest of Hamburg.
The town serves as the location for several educational institutions, most notably the Klaus-Groth-Schule, which is named after the German poet Klaus Groth. Additionally, Tornesch is home to the Fritz-Reuter-Schule, named in honor of the German writer Fritz Reuter.