HMAS Napier (G97/D13) was an N-class destroyer serving in the Royal Australian Navy (RAN) during World War II. Built during 1939 and 1940, the destroyer was commissioned into the RAN, although she was ordered and owned by the British government. During 1941, Napier operated in the Mediterranean, before being transferred to the British Eastern Fleet at the start of 1942, then to south Atlantic operations in early 1944. In 1945, Napier was assigned to the British Pacific Fleet, and spent the rest of World War II in the fight against Japan. After the war's end, the destroyer was decommissioned and returned to the British. She was sold off in 1955, and broken up in 1956.

The J, K and N class consisted of 24 destroyers built for the Royal Navy beginning in 1938. They were a return to a smaller vessel, with a heavier torpedo armament, after the Tribal class that emphasised guns over torpedoes. The ships were built in three flotillas or groups, each consisting of eight ships with names beginning with "J", "K" and "N". The flag superior of the pennant numbers changed from "F" to "G" in 1940.