Cremlingen is a municipality in the district of Wolfenbüttel, Lower Saxony, Germany.

It borders Lehre, Königslutter, Sickte, and Braunschweig.

From May 8, 1944 until April 12, 1945 a concentration camp was established in the quarter Schandelah.

Until its deestablishment in 1974, the municipalities later merged into Cremlingen were part of the district of Braunschweig.

The Federal Highway 1 crosses the municipality from east to west, and since the end of September 2006 Cremlingen has a connection point to the Federal Motorway (Bundesautobahn 39), which offers quick connections both to Wolfsburg and Braunschweig.