| Wakenitz | |
| Source1 Location: | Ratzeburger See |
| Mouth Location: | Trave |
| Mouth Coordinates: | 53.8733°N 10.6972°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | States |
The Wakenitz is a river in southeastern Schleswig-Holstein and at the border to Mecklenburg-Vorpommern.
The Wakenitz's source is the Ratzeburger See in Ratzeburg. It is about long and drains into the Trave in Lübeck. The majority of its eastern bank forms the border between Schleswig-Holstein and Mecklenburg-Vorpommern. After the end of World War II this river formed part of the Iron Curtain between the Federal Republic of Germany and the German Democratic Republic. The Wakenitz drains an area of about .