Carlisle city walls were a defensive structure surrounding the centre of Carlisle, Cumbria. The city walls ran from Carlisle Castle in the north-west of the city to The Citadel in the south-east. Between these points, the city was protected by the former North and East Walls and the West Walls which remain largely intact. The line of the walls can still be followed with the exception of the southernmost end of the West Wall which has been built over. The perimeter, including the castle, is approximately 2.2 kilometres (1.4 mi) which is comparable to Southampton town walls but less than Chester city walls.