HMS Napier was a Repeat Admiralty M-class destroyer which served in the Royal Navy during the First World War.

After the Armistice that marked the end of the First World War, Napier was placed in reserve before being decommissioned and sold to be broken up on 8 November 1921.

The remit was to have a maximum speed of 36 knots (67 km/h; 41 mph) and, although the eventual design did not achieve this, the greater performance was appreciated by the navy.

[3] Napier was also fitted with a raked bow, which proved sufficient advantage that it was replicated in future designs, including the Parker-class flotilla leaders.

[7][8] A single QF 2-pounder 40 mm (1.6 in) "pom-pom" anti-aircraft gun was mounted between the torpedo tubes to provide defence against aerial attack.

[12] Laid down by John Brown & Company of Clydebank at their shipyard on 6 July 1915 with the yard number 444, Napier was launched on 27 November and completed on 22 January the following year.

[5] The ship was the third to be named after Admiral Sir Charles Napier, the nineteenth century sailor, to enter naval service.

[29] The destroyer was deemed unfit to remain in operation, subsequently was decommissioned and, on 8 November 1921, was sold to Slough TC to be broken up in Germany.