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.

This Gifhorn district location article is a stub.