| Dreetz | |
| Image Coa: | Wappen Dreetz (Brandenburg).png |
| Coordinates: | 52.7997°N 12.4667°W |
| Image Plan: | Dreetz in OPR.png |
| State: | Brandenburg |
| District: | Ostprignitz-Ruppin |
| Amt: | Neustadt (Dosse) |
| Elevation: | 29 |
| Area: | 64.43 |
| Postal Code: | 16845 |
| Area Code: | 033970 |
| Licence: | OPR |
| Gemeindeschlüssel: | 12 0 68 109 |
| Divisions: | 5 Ortsteile |
| Website: | www.Gemeinde-Dreetz.de |
| Mayor: | Babette Findeis[1] |
| Leader Term: | 2024 - 29 |
| Party: | independent |
Dreetz is a municipality in the Ostprignitz-Ruppin district, in Brandenburg, Germany.
From 1815 to 1945, Dreetz was part of the Prussian Province of Brandenburg. From 1952 to 1990, it was part of the Bezirk Potsdam of East Germany.