HM or hm may refer to:
The Hmong/Mong (RPA: Hmoob/Moob, Hmong pronunciation: [m̥ɔ̃ŋ]) is an ethnic group from the mountainous regions of southern China, Vietnam, Laos, Myanmar and Thailand.
HMS Hood (pennant number 51) was the last battlecruiser built for the Royal Navy. Commissioned in 1920, she was named after the 18th-century Admiral Samuel Hood.
Hmong (RPA: Hmoob) or Mong (RPA: Moob), known as First Vernacular Chuanqiandian Miao in China (Chinese: 川黔滇苗语第一土语; pinyin: Chuānqiándiān miáo yǔ dì yī tǔyǔ), is a dialect continuum of the West Hmongic branch of the Hmongic languages spoken by the Hmong of Sichuan, Yunnan, Guizhou, Guangxi, northern Vietnam, Thailand, and Laos.
HMS Victory is a 104-gun first-rate ship of the line of the Royal Navy, ordered in 1758, laid down in 1759 and launched in 1765. She is best known for her role as Lord Nelson's flagship at the Battle of Trafalgar in 1805.
Her Majesty's Naval Base, Devonport (HMNB Devonport), is the largest naval base in Western Europe and is the sole nuclear repair and refuelling facility for the Royal Navy.
Hmong Americans are Americans of Hmong or Miao people descent from China, Southeast Asia, most notably from Thailand, Vietnam and Laos.
Her Majesty's Naval Base, Portsmouth (HMNB Portsmouth) is one of three operating bases in the United Kingdom for the British Royal Navy (the others being HMNB Clyde and HMNB Devonport).
HMS Ark Royal (pennant number 91) was an aircraft carrier of the Royal Navy that served during the Second World War.