HEG may refer to: Places Mount Heg, Victory Mountains, Antarctica Herlong Recreational Airport, Jacksonville, Florida, US (FAA LID:HEG)
Science and technology Hemoencephalography Homing endonuclease genes Homogeneous electron gas Host Europe Group, a web hosting company in the UK Hydro-erosive grinding Hyperemesis gravidarum, a complication of pregnancy
Other uses Hans Christian Heg (1829–1863), Norwegian-American politician and soldier Helong language, spoken on Timor (ISO 639-3:heg)