AET
- AET (company)
- Academies Enterprise Trust
- Administration for Technical Investigations
- Aerobic exercise
- Aet (given name)
- Affective Events Theory
- After extra time
- All-electronic tolling
- Allakaket Airport
- American Educational Trust
- Assistant Language Teacher
- Award in Education and Training
- DICOM
- Evapotranspiration
- S-(2-aminoethyl)isothiuronium bromide hydrobromide
- Time in Australia