HMS or hms may refer to:
Education Habib Medical School, of the Islamic University in Uganda Hartley–Melvin–Sanborn Community School District of Iowa, United States Harvard Medical School of Harvard University Heidelberg Middle School, a former American school in Heidelberg, Germany Hongwanji Mission School, in Hawaii, United States Horley Methodist School, Teluk Intan, in Malaysia
Medicine and science Hartford Medical Society, an American professional association based in Hartford, Connecticut Health management system Hexose monophosphate shunt, an alternative name for the pentose phosphate pathway Highly migratory species, a classification of fish Hypermobility spectrum disorder, formerly hypermobility syndrome or HMS HMS, a brand name of medrysone
Technology Huawei Mobile Services, proprietary apps and services from Huawei bundled with Android devices HMS Networks, a company in the field of industrial communications HMS Group, Russian industrial and engineering holding Heavy melting steel Helmet mounted sight Hybrid Management Sub-Layer, in networking Munter hitch (German: ), a type of knot Handheld, Manpack, Small Form Factor, in the US Joint Tactical Radio System
Transport
Her or His Majesty's Ship, a ship prefix Helmsdale railway station, Scotland, station code Helsinki Motor Show, annual national Finnish car show. Hendrick Motorsports, a NASCAR racing team
Society Hellenic Mathematical Society, a Greek learned society Historical Maritime Society, UK
Other uses Hind Mazdoor Sabha, an Indian trade union HMS Management, family office of Josh Harris Hours, minutes, seconds, sometimes "h:m:s", dividing hours into smaller units
See also HSM (disambiguation)