HMS Penguin (1757) was a 20-gun post ship. She was originally launched in 1731 as Dolphine, then renamed Firebrand, and finally renamed Penguin in 1757. The French captured her in 1760.
HMS Penguin (1772) was an 8-gun sloop building in 1772. She was not completed and was broken up in 1775.
HMS Penguin was a 16-gun brig. She was originally the Dutch Komeet and was captured in 1795 by HMS Unicorn off the coast of Ireland. She was originally named HMS Comeet before being renamed to HMS Penguin in 1796. She was sold in 1809.
HMS Penguin (1838) was a 6-gun packet brig laid down in 1838. In 1858 she became a coastguard watchvessel. She was renamed WV.31 in 1863 and sold in 1873.
HMS Penguin (1876) was an Osprey-class sloop launched in 1876. In 1890 she became a survey ship and in 1908 a depot ship. She was transferred to the Royal Australian Navy in 1913 and sold in 1924. She became a crane hulk and was burnt in 1960.