HM or hm may refer to:
The Hmong people (RPA: Hmoob/Moob, Hmong pronunciation: [m̥ɔ̃ŋ]) are an ethnic group in East and Southeast Asia.
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, Hainan, northern Vietnam, Thailand, and Laos.
Hmong Americans are Americans of Hmong or Miao, descendants of people originally from southern China, home to over 90 percent of the current and loosely related Hmong/Miao groups and subgroups in the world.
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 on 21 October 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.