| Ziethen | |
| Coordinates: | 52.9667°N 13.9167°W |
| Image Plan: | Ziethen_in_BAR.png |
| State: | Brandenburg |
| District: | Barnim |
| Amt: | Joachimsthal (Schorfheide) |
| Elevation: | 50 |
| Area: | 24.33 |
| Postal Code: | 16247 |
| Area Code: | 033364 |
| Licence: | BAR |
| Gemeindeschlüssel: | 12 0 60 296 |
| Divisions: | 2 Ortsteile |
| Website: | www.amt-joachimsthal.de |
| Mayor: | Michael Dupont[1] |
| Leader Term: | 2024 - 29 |
Ziethen is a municipality in the district of Barnim in Brandenburg in Germany.
On 1 February 2002, the municipality of Ziethen was formed by merging the municipalities of Groß-Ziethen and Klein Ziethen.
From 1815 to 1947, Groß-Ziethen and Klein-Ziethen were part of the Prussian Province of Brandenburg, from 1947 to 1952 of the State of Brandenburg, from 1952 to 1990 of the East German Bezirk Frankfurt and since 1990 again of Brandenburg, since 2002 united as the municipality of Ziethen.