Well if you mean Anglican Cathedrals then, Bath, Brighton, Hove, Cambridge, Hull, Lancaster, Leeds, Newry, Nottingham, Plymouth, Preston, Salford, Southampton,|
Stirling, Sunderland, Stoke, Swansea, Westminster, Wolverhampton.
But also check out post #59999 gmackematix stated:
UK cities without cathedrals include:
Bath, Cambridge, Hull, Lancaster, Newport, Nottingham, Plymouth, Salford, Southampton, Stoke-on-Trent and Wolverhampton.
UK towns (and one village) with cathedrals that aren't cities include:
Bury St Edmunds, Chelmsford, Blackburn, Guildford and Southwell.