HEF

Hef or HEF may refer to:


 * Hef (rapper), Julliard Frans (born 1987), Dutch rapper
 * Hefeweizen, a type of beer
 * Herefordshire, county in England, Chapman code
 * High-energy fuel, an experimental aircraft fuel
 * High explosive fragmentation, a type of ammunition or ordnance
 * Historic Railway, Frankfurt (German: Historische Eisenbahn Frankfurt)
 * Holocaust Educational Foundation, part of Northwestern University
 * Hope Educational Foundation, in South Africa
 * Hugh Hefner (1926–2017), American magazine publisher, founder and chief creative officer of Playboy Enterprises
 * Hungarian Evangelical Fellowship
 * Manassas Airport, in Virginia, United States
 * Norwegian Humanist Association (Norwegian: Human-Etisk Forbund)