One ship and three shore establishments of the Royal Navy have borne the name HMS Flycatcher:
HMS Flycatcher (1912) was an ex-Turkish motor patrol boat. Built in 1912 by Thornycroft, she was sunk on 9 November 1914 by HMS Espiegle in Shatt-al-Arab, salvaged, and returned to service late 1915, armed with 1 6-pounder gun and 1 machine gun. Sold c1923.[1]