| Type: | Stadt |
| Image Coa: | DEU Tornesch COA.svg |
| Coordinates: | 53.7°N 52°W |
| Image Plan: | Tornesch in PI.svg |
| State: | Schleswig-Holstein |
| District: | Pinneberg |
| Elevation: | 12 |
| Area: | 20.62 |
| Postal Code: | 25436 |
| Area Code: | 04122, 04120 |
| Licence: | PI |
| Gemeindeschlüssel: | 01 0 56 048 |
| Divisions: | 3 Stadtteile |
| Website: | www.tornesch.de |
| Mayor: | Christopher Radon |
Tornesch is a town in the district of Pinneberg, in Schleswig-Holstein, Germany. It is situated approximately 7km (04miles) southeast of Elmshorn, and 25km (16miles) northwest of Hamburg. Tornesch is also the home of the Klaus-Groth-Schule, named after the German poet Klaus Groth. It is also home to the Fritz-Reuter-Schule, named after German writer Fritz Reuter.
Tornesch has a place in biochemical history from the wood saccharification[1] process developed by Scholler,[2] also known at the Scholler-Tornesch process. The first factory to use the process was built in Tornesch. This early work was part of the development of biofuel such as cellulosic ethanol.