HMS Fortitude

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{{Use British English|date=January 2018}}

Two ships and a shore establishment of the Royal Navy have borne the name HMS Fortitude:

Ships

• {{HMS|Fortitude|1780}} was a 74-gun third rate launched in 1780. She became a prison ship in 1795, a powder hulk in 1802, and was broken up in 1820.
• HMS Fortitude was launched in 1807 as the 74-gun third-rate {{HMS|Cumberland|1807|6}}. She became a prison ship in 1830, was renamed Fortitude in 1833, and was sold in 1870.

Shore establishments

• {{HMS|Fortitude|shore establishment}} was the naval base at Ardrossan, commissioned in 1940 and paid off in 1945.
• HMS Fortitude II was the Coastal Forces base at Ardrossan, commissioned in 1941. The base was on the navy list in 1944, but not in 1942.