CAE
- CAE Aviation
- CAE Inc.
- Caelum
- Caernarfonshire
- Canadian Academy of Engineering
- Canadian Arctic Expedition, 1913–1916
- Canadian Forces Radio and Television
- Caprine arthritis encephalitis
- Carbonic anhydrase
- Center for American Education (disambiguation)
- Central African Empire
- Centre for Adult Education
- Certificate in Advanced English
- Chief audit executive
- Child Abduction Emergency
- Childhood absence epilepsy
- Chinese Academy of Engineering
- College of Advanced Education
- College of Aeronautical Engineering
- Columbia Metropolitan Airport
- Common Application Environment
- Compressed air engine
- Computer-aided engineering
- Conseil d'Analyse Économique
- Continental Aviation and Engineering
- Critical Art Ensemble
- Régional Compagnie Aérienne Européenne