HMS Crispin was a British cargo steamship that was launched in England in 1934 and operated by Alfred Booth and Company between Liverpool and the east coast of South America. In 1940 the British Admiralty requisitioned her and had her converted into an ocean boarding vessel. In 1941 a U-boat sank her in the Battle of the Atlantic, killing 20 of her crew. This was the second of five Booth Line ships called Crispin. The first was a steamship that was built in 1907 and sunk by enemy action in 1917. The others were post-war cargo ships.