Several ships of the Royal Navy have been named HMS Nautilus, after the Greek word for a sailor, including:
- was a 16-gun sloop launched in 1762 and put up for sale in 1780
- was a 16-gun sloop launched in 1784 and wrecked in 1799. All 125 men of her crew were saved.
- was an 18-gun sloop launched in 1804 and wrecked in 1807.
- was an 18-gun launched in 1807 and broken up in 1823
- was a 10-gun launched in 1830. She became a training ship in 1852, was hulked in 1872 and broken up in 1878
- was an 8-gun training brig launched in 1879 and sold in 1905
- was a launched in 1910. She was renamed HMS Grampus in 1913 and was sold in 1920
- was a submarine launched in 1914. She was renamed HMS N1 in 1918 and was sold in 1922
See also
- Ships named Nautilus
- was launched in 1806 by the Bombay Dockyard for the naval arm of the British East India Company. Nautilus was wrecked in 1834 on the Malabar Coast.