HAF

HAF may refer to: Halfling, via Dungeons and Dragons
 * the Haftar Armed Forces, the United Nations term for the Libyan National Army, a group of armed forces in Libya opposed to the Government of National Accord roughly from 2016–present
 * Haiphong Sign Language
 * Half Moon Bay Airport, in San Mateo County, California, United States
 * Headquarters, United States Air Force
 * Heathrow Terminal 4 railway station, in London
 * Hellenic Air Force
 * Helms Athletic Foundation
 * Heydar Aliyev Foundation
 * Hindu American Foundation
 * Homeworkers' Union, a former trade union in Denmark
 * Honduran Air Force