HMS

The abbreviation HMS (hms) may refer to:

Data formalisation

• Numerical representation of time using a 24-hour clock, hh:mm:ss for hours, minutes, seconds

Ship names

• Her Majesty's Ship (or His Majesty's Ship, or Submarine), the prefix of Royal Navy ship names since 1789
• Hans Majestäts Skepp (His Majesty's ship) or Hennes Majestäts Skepp (Her Majesty's Ship), the prefix of Royal Swedish Navy ship names

Organisations

• Hellenic Mathematical Society, a Greek learned society
• Hind Mazdoor Sabha, a trade union in India
• Historical Maritime Society, a British naval reenactment society
• Hendrick Motorsports, NASCAR racing team
• Harakat Mujtama' as-Silm, or Movement of Society for Peace, an Algerian Islamist political party
• HMS, National Rail station code of Helmsdale railway station, Scotland
• HMS Industrial Networks, a Swedish-based industrial communications company

Educational institutions

• Artie Henry Middle School (also known as Henry Middle School), Cedar Park, Texas
• Hamden Middle School, Hamden, Connecticut
• Harvard Medical School
• Haverford Middle School, Havertown, Pennsylvania
• Hedrick Middle School, Medford, Oregon
• Heidelberg Middle School, Heidelberg, Germany
• Henry E. Huntington Middle School, San Marino, California
• High Mowing School, Wilton, New Hampshire
• Highland Middle School, multiple schools
• Hudson Middle School, Sachse, Texas
• Hudson Middle School, Hudson, Ohio
• Huntington Middle School, Warner Robins, Georgia

Other uses

• Health management system, an evolutionary medicine process that regulates the body's responses to infections and injury.
• Halbmastwurf-Sicherung, a type of knot used by climbers; or the type of carabiner used with the HMS knot
• Handheld, Manpack, Small Form Factor, radio transceivers in the United States' military Joint Tactical Radio System
• Medrysone, by trade name HMS
• Heavy melting steel, designation for recyclable steel and iron
• Helmet mounted sight, sight present on a pilot's helmet, used for cueing and tracking a target when a pilot moves his head
• Hemin storage, a protein found in Yersinia pestis, the causal agent of plague
• Hexose monophosphate shunt, a biochemical pathway also known as the pentose phosphate pathway
• Highly migratory species, United Nations term for migrating fish
• Hypermobility syndrome
• HMS, a proposed CW Television Network series about Harvard Medical School