Ten vessels of the Royal Navy have been named HMS Nautilus, after the Greek word for a sailor.

• The first Nautilus was a 16-gun sloop launched in 1762.
• The second Nautilus was a 16-gun sloop launched in 1784 and wrecked in 1799.
• The third Nautilus was an 18-gun sloop launched in 1804 and wrecked in 1807.
• The fourth Nautilus was a 14-gun brig-sloop built c. 1794 and captured in 1815 by USS Peacock.
• The fifth Nautilus was a 14-gun brig-sloop launched in 1806 and wrecked in 1834.
• The sixth Nautilus was an 18-gun brig-sloop, launched in 1807 and broken up in 1823.
• The seventh Nautilus was a 10-gun brig-sloop, launched in 1830 and broken up in 1878.
• The eighth Nautilus was an 8-gun training brig, launched in 1879 and sold in 1905.
• The ninth Nautilus, launched in 1910, was a Beagle-class destroyer. In World War I she served in the Dardanelles campaign. She was sold in 1920.
• The tenth Nautilus , launched in 1914, was a submarine, renamed N1 in 1918 and sold in 1922.

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