HMT Cambridgeshire (FY142) was a British Second World War anti-submarine trawler of the British Royal Navy, named after Cambridgeshire, an English county. The 443 ton trawler was laid down on 2 July 1935 at Smiths Dock Company of South Bank-on-Tees and completed by the end of the year. It was requisitioned by the Royal Navy in August 1939 shortly before the outbreak of the war and converted to an anti-submarine vessel, armed with a single 4 inch gun, machine guns and depth charges.