Two ships of the Royal Australian Navy have been named for the Gascoyne River, the longest river in Western Australia which rises west of the Carnarvon Range and flows to the Indian Ocean.
The first HMAS Gascoyne (K-354/F-354/A-276) was a River class frigate laid down by Morts Dock and Engineering Company at Balmain in New South Wales on 3 July 1942, launched on 20 February 1943 by Lady Wakehurst, wife of the Governor of New South Wales and commissioned on 18 November 1943. Gascoyne paid off into reserve on 12 April 1946 but re-commissioned at Sydney on 8 June 1959 for survey and oceanographic research duty. HMAS Gascoyne paid off on 1 February 1966, was sold for scrap to the Fujita Salvage Company Limited of Osaka in Japan on 15 February 1972 and left Melbourne under tow for Japan on 6 July 1972.
The second HMAS Gascoyne is a Huon class minehunter.