Four ships of the Royal Navy have borne the name HMS Chester, after the city of Chester:
There was also a planned Castle-class corvette named HMS Chester Castle. She was cancelled in 1943.
There was also an HMS Chester serving as a tank (water) vessel in the 1880s - saw service during the Egyptian campaign of 1882 when she was an "attendant" on HMS Alexandra; 21 men (her whole crew?) received the medal for Egypt serving aboard the ship.