| Tielen | |
| Image Coa: | DEU Tielen COA.svg |
| Coordinates: | 54.2869°N 9.3681°W |
| Image Plan: | Tielen in SL.PNG |
| State: | Schleswig-Holstein |
| District: | Schleswig-Flensburg |
| Amt: | Kropp-Stapelholm |
| Elevation: | 4 |
| Area: | 13.32 |
| Postal Code: | 24803 |
| Area Code: | 04333 |
| Licence: | SL |
| Gemeindeschlüssel: | 01 0 59 088 |
| Website: | www.kropp.de |
| Mayor: | Sönke Holmsen |
Tielen (Danish: Tiele) is a municipality in the district of Schleswig-Flensburg, in Schleswig-Holstein, Germany.