- AEK stands for Advanced Electronic Kit (Fluke)
- AEK stands for Akavan Erityisalojen Keskusliitto
- AEK stands for Alfabetatze Euskalduntze Koordinakundea
- AEK stands for Asociación Española de Kyudo (Spanish: Spanish Association of Kyudo)
- AEK stands for All Electric Kitchen (home/apartment rental ads)
- AEK stands for Athlitiki Enosis Konstantinoupolis (Athens, Athletic Union of Constantinople)
- AEK stands for Athlitiki Enosis Kition (Cyprus football team)
- AEK stands for Adolph Ernst Knoch (principal author of the concordant version of the New Testament)
- AEK stands for Algorithm Encryption Key
- AEK stands for Athletic Union Kition (soccer club of Larnaca, Cyprus)
AEK