| Type: | Gemeinde |
| Sassenburg | |
| Image Coa: | Wappen der Gemeinde Sassenburg.png |
| Coordinates: | 52.5167°N 48°W |
| Image Plan: | Sassenburg in GF.svg |
| State: | Niedersachsen |
| District: | Gifhorn |
| Elevation: | 55 - 69 |
| Area: | 88.4 |
| Postal Code: | 38524 |
| Area Code: | 05371, 05378, 05379 |
| Licence: | GF |
| Gemeindeschlüssel: | 03 1 51 025 |
| Divisions: | 6 districts |
| Website: | www.sassenburg.de |
| Mayor: | Jochen Koslowski[1] |
| Leader Term: | 2021 - 26 |
| Party: | Ind |
Sassenburg is a municipality in the district of Gifhorn, Lower Saxony, Germany. It is situated approximately 7 km northeast of Gifhorn, and 15 km northwest of Wolfsburg. Sassenburg includes the villages of Dannenbüttel, Grußendorf, Neudorf-Platendorf, Stüde, Triangel and Westerbeck. The seat of the municipality is in the village Westerbeck.