HMS Achates was an A-class destroyer built for the Royal Navy during the late 1920s. Completed in 1930, she initially served with the Mediterranean Fleet. She was sunk on 31 December 1942 during the Battle of the Barents Sea.

The A- and B-class destroyers were a group of 18 destroyers built for the Royal Navy during the late 1920s, with two additional ships built for the Royal Canadian Navy. The British ships were divided into two flotillas of eight destroyers, each with a flotilla leader.