AHD or OHG is the abbreviation for:

  • Old High German, the oldest form of the German language
  • American Heritage Dictionary, A Dictionary of American English
  • Advanced Hull Dynamics, a European manufacturer of surfboards
  • Anti- handling device, a component of a landmine
  • High Density Audio, an audio format of Laser Disc Video High Density

See also:

  • Disambiguation
  • Abbreviation