English abbreviations from aha to ahead
- AHA (American Hospital Association … or American Heart Association)
- AHAFRC (Allen Hall Armed Forces Reserve Center, Tucson, Arizona)
- AHAI (Amateur Hockey Association of Illinois)
- AHAM (Advanced Heavy Anti-tank Missile)
- AHAMS (Advanced Heavy Anti-tank Missile System)
- AHANA (American, Hispanic, Asian, and Native American)
- AHAS (Automated Historical Archives System)
- AHAT (Advanced Hardened Avionics Technology)
- AHA-USA (Action Against Hunger - United States of America)
- AHAWS (Advanced Heavy Anti-Armor Weapons System)
- AHB (Abha Regional Airport)
- AHBDF (along hole (depth) below Derrick floor)
- AHC (Attitude Heading Control)
- AHC(s) (academic health center(s))
- AHCA (American Health Care Association)
- AHCP (Access to HIV Care Program)
- AHCPR (Agency for Health Care Policy and Research (obsolete; replaced with AHRQ))
- AHD (along hole depth)
- AHE (Ahe Airport)
- AHEAD (A Hatfield Educational Achievement Drive)