English abbreviations from yact to yam
- YACT (Young Adult Coordinating Team)
- YAD (Moose Lake Airport (TC: CJB4))
- YAE (Young Artists Ensemble)
- YAF (Young Americans for Freedom)
- YAFA (York Action For Animals)
- YAFE (Yet Another Fractal Explorer)
- YAFIYGI (You Asked For It, You Got It)
- YAFLA (Yet Another Five Letter Abbreviation)
- YAFS (Yet Another Fireworks Shot)
- YAFWG (Young Adult Friends Working Group)
- YAG (Youth Association of Ghana)
- YAGC (Young Audiences of Greater Cleveland)
- YAGE (Yet Another Gameboy Emulator)
- YAGNI (You Aren't Going to Need It)
- YAH (La Grande-4 Airport)
- YAHC (Young Adults' Health Center)
- YAI (General Bernardo O'Higgins Airport)
- YAJ (Lyall Harbour Airport)
- YAK (Yakutat Airport)
- YAL (Alert Bay Airport)
- YALA (Young Adults of Los Angeles (The Jewish Federation of Greater Los Angeles))
- YALE (Yet Another LISP Extension)
- YALSA (Young Adult Library Services Association)
- YAM (Sault Ste. Marie Airport)
