HMN

HMN may refer to:

Transport

 * Hamilton railway station, New South Wales in Australia
 * Hamilton station (Ohio) in the United States
 * Hemmen-Dodewaard railway station, in the Netherlands
 * Humayun railway station, in Pakistan
 * Holloman Air Force Base, in New Mexico, United States
 * Homerton railway station in London

Other uses

 * Health Metrics Network, an international health organization
 * Hereditary motor neuropathies
 * , ISO 639-3 code for the Hmong language
 * Hmongic languages, spoken in China, Laos, and Vietnam
 * Isocetane (2,2,4,4,6,8,8-heptamethylnonane)