I Corps Troops, Royal Engineers was a battalion-sized unit of Royal Engineers (RE) attached to the British I Corps Headquarters in World War II. It served with the British Expeditionary Force in the Battle of France and Dunkirk evacuation, and later with 21st Army Group during the campaign in North West Europe 1944–45 from D Day until the German surrender at Lüneburg Heath. It later served in British Army of the Rhine.

II Corps Troops, Royal Engineers was a battalion-sized unit of Royal Engineers (RE) attached to the British II Corps Headquarters in World War II. It served with the British Expeditionary Force in the Battle of France and Dunkirk evacuation, and later in Home Defence until disbandment in 1943.