The sixth HMS Bulwark of the Royal Navy was a 22,000 tonne Centaur-class light fleet aircraft carrier. Initially commissioned as a light aircraft carrier in 1954, the ship was converted into a commando carrier in 1958 and recommissioned as such in 1960. Bulwark remained in this capacity until 1979 when following failed efforts to sell the ship, Bulwark re-entered service as an anti-submarine warfare carrier and remained as such until being decommissioned in 1981. The ship was scrapped in 1984.