| Image Coa: | DEU Hetlingen COA.svg |
| Coordinates: | 53.6°N 47°W |
| Image Plan: | Hetlingen in PI.svg |
| State: | Schleswig-Holstein |
| District: | Pinneberg |
| Amt: | Geest und Marsch Südholstein |
| Elevation: | 0 |
| Area: | 24.1 |
| Postal Code: | 25491 |
| Area Code: | 04103 |
| Licence: | PI |
| Gemeindeschlüssel: | 01 0 56 027 |
| Website: | www.amt-haseldorf.de |
| Mayor: | Michael Rahn |
Hetlingen is a municipality in the district of Pinneberg in the German state of Schleswig-Holstein.Hetlingen is the site of Elbe Crossing 1 and Elbe Crossing 2, two power line crossings across the river Elbe. The pylons of Elbe Crossing 2 are the highest pylons in Europe. Hetlingen also has the largest sewage treatment in the state of Schleswig-Holstein, treating the wastewater of several districts with a total population of about 450,000.