Firecrest can refer to:
Birds Common firecrest (often called firecrest), Regulus ignicapillus, found in Europe and north Africa Madeira firecrest, Regulus madeirensis, found on the island of Madeira Taiwan firecrest (also known as flamecrest), Regulus goodfellowi, found in Taiwan
Ships and boats USS Firecrest, a ship name used more than once by the U.S. Navy Firecrest, was a 12-ton racing cruiser in which Alain Gerbault circumnavigated the globe from 1923 to 1929
Aircraft Blackburn Firecrest, was a single-engine naval strike fighter aeroplane built by Blackburn Aircraft
Other Firecrest (novel), a 1971 thriller novel by Victor Canning