HMS Teazer was an R-class destroyer which served with the Royal Navy during World War I. The destroyer was launched in April 1917 and, on trial, proved to be one of the fastest afloat, exceeding 40 knots (46 mph; 74 km/h). Attached to the Harwich Force, the ship supported the monitors Erebus, Terror and Marshal Soult in the bombardment of Zeebrugge in May 1918 and one of the final sorties of the war in the October following. The destroyer also took part in operations off the coast of Heligoland with a flying boat on a lighter, although the aircraft failed to take off. After the war, Teazer was kept in reserve until being sold to be broken up in 1931 following the signing of the London Naval Treaty that limited total destroyer tonnage.