Five ships and a shore establishment of the Royal Navy have been named HMS Mersey after the River Mersey:
Ships
HMS Mersey was a Conway-class 26-gun sixth rate launched in 1814, used for harbour service from 1832, and broken up in 1852.
HMS Mersey was a wooden screw frigate launched in 1858 and sold in 1875.
HMS Mersey was a Mersey-class protected cruiser launched in 1885 and sold in 1905.
HMS Mersey was a Humber-class monitor launched in 1913 for Brazil, but purchased by the Royal Navy in 1914 and sold in 1921.
HMS Mersey is a River-class offshore patrol vessel launched in 2003 and currently in service.
Shore establishments
HMS Mersey was the Navy's Liverpool depot, established as a branch of HMS Eaglet and commissioned in 1940, and paid off in 1946.
HMS Mersey was the name borne by a number of tenders to the Liverpool Royal Naval Reserve
HM Motor minesweeper 1075 was HMS Mersey between 1949 and 1956.
HMS Amerton was HMS Mersey between 1954 and 1959.
HMS Pollington was HMS Mersey between 1959 and 1975.
