- AESA stands for Active Electronically Scanned Array
- AESA stands for Agence Européenne de la Sécurité Aérienne (French: European Aviation Safety Agency)
- AESA stands for Association of Educational Service Agencies
- AESA stands for Active Electronically Steered Array (aka Active Electronically Scanned Array; radar technology)
- AESA stands for ATM End System Address
- AESA stands for Atmospheric Effects of Stratospheric Aircraft
- AESA stands for Aviation & Electronic Schools of America (Colfax, CA)
- AESA stands for Autorité Européenne de Sécurité des Aliment (French: European Food Safety Authority)
- AESA stands for The Ancient Egypt Studies Association
- AESA stands for Arizona Emergency Services Association (Phoenix, AZ)
- AESA stands for Association of Environmental Scientists and Administrators
- AESA stands for Assign-and-Estimate Scheduling Algorithm
AESA