HMS Grasshopper was a Dragonfly-class river gunboat built for the Royal Navy in the late 1930s. After completion was sent to the China station where she was deployed on the Yangtse River to relieve the Insect-class gunboat, HMS Gnat. She remained there until the declaration of war by the Empire of Japan in December 1941. She was subsequently transferred to Singapore Naval Base and participated in the Malayan Campaign in early 1942. Near the end of the Battle of Singapore, she evacuated the base on 11 February together with her sister ship HMS Dragonfly. Three days later she was attacked and sunk by Japanese aircraft off the island of Sebayer. Most of the ship's survivors were later captured on Sumatra by Japanese troops.