AET

AET may refer to:


 * Academies Enterprise Trust, in the UK
 * Actual Evapotranspiration, in climatology
 * Administration for Technical Investigations (Administration des enquêtes techniques)
 * Aerobic exercise training
 * AET (company), a shipping company formerly known as American Eagle Tankers
 * Aet (given name), an Estonian feminine given name
 * Affective Events Theory, a model developed by organizational behaviorists to identify how emotions and moods influence job performance and satisfaction
 * "After extra time", in sports, the score after overtime has finished
 * All-electronic tolling
 * Allakaket Airport in Alaska (IATA Code: AET)
 * American Educational Trust, a non-profit foundation
 * Application Entity Title, in the DICOM medical imaging standard
 * Assistant English Teacher, also called an Assistant Language Teacher
 * Australian Eastern Time, a time zone in Australia
 * Award in Education and Training, in UK education
 * S-(2-aminoethyl)isothiuronium bromide hydrobromide
 * α-Ethyltryptamine, a psychoactive drug belonging to the tryptamine family