HMS Firefly Wikipedia
At least four ships of the Royal Navy have borne the name HMS Firefly:HMS Firefly (1828), a schooner wrecked on 27 February 1835 on the Northern Triangles, off Belize with the loss of thirteen of her 23 crew.
HMS Firefly (1832), a Firefly-class gunboat, re-engined in 1844 with the engine from HMS Phoenix and became a survey ship.
HMS Firefly (1877), a British Forester-class gunboat.
HMS Firefly (1915), a British Fly-class gunboat.
HMT Firefly, a British trawler that operated between 1930 and 1961.