The 1st Assault Brigade Royal Engineers was a specialised armoured formation of the British Army active in the Second World War. It was formed in mid-1943 and its structure was three assault regiments of the Royal Engineers. It was assigned to the 79th Armoured Division in preparation for the Normandy invasion of 6 June 1944. The unit comprised armoured vehicles modified for specialist roles (also known as Hobart's Funnies), intended to assist with the landing phase of the operation.