HMS Rapid was a destroyer of the M class that served with the Royal Navy during First World War. Launched by Thornycroft in 1916, the vessel was the one of two similar ships ordered as part of the Fifth War Construction Programme. They differed from the remainder of the M class in having more powerful engines. The design was used as the basis for the subsequent five ships of the R-class also built by the yard. Rapid served in escort and patrol roles, principally providing defence from submarines as part of the Grand Fleet until it was disbanded at the end of the War. After the end of hostilities, the vessel served in minor roles, including briefly as part of the Admiralty Compass Department in 1921 and 1924, but was sold to be scrapped in 1927.