AAST

American Association for the Surgery of Trauma
Found on http://www.encyclo.co.uk/local/20895

AAST

American Association of Sleep Technologists [Formerly: Association of Polysomnographic Technologists]
Found on http://www.encyclo.co.uk/local/20895

AAST

aeromedical evacuation administrative support team
Found on http://en.wikipedia.org/wiki/List_of_U.S._government_and_military_acronyms
No exact match found