HMS Puffin (L52) (later K52), was a Kingfisher-class sloop of the British Royal Navy, built in the 1930s, that saw service during World War II.

As it became available the Centimetric Radar Type 271 was added - a target indication set capable of picking up the conning tower or even the periscope or snorkel of a submarine.

On 25 October 1939 the German submarine U-16 was sunk in the English Channel near Dover by depth charges from Puffin and the ASW trawler HMT Cayton Wyke.

[2] On 19 May 1940 Puffin along with a group of six trawlers and two destroyers took part in "Operation Quixote", cutting commercial cables from the UK to Europe off the coast of Norfolk.

[2] The impact caused the U-boat's torpedoes to explode[4] and Puffin was so badly damaged that she was written off as constructive total loss, and finally sold for scrapping in 1947.