- CAEC stands for Council for Asia-Europe Cooperation (research institution network)
- CAEC stands for Central Asian Economic Community (est. 1994)
- CAEC stands for Central Alabama Electric Cooperative
- CAEC stands for Center for Analysis of Environmental Change
- CAEC stands for Clinical Audit and Effectiveness Committee (National Health Service; UK)
- CAEC stands for Coronary Arterial Endothelial Cells
- CAEC stands for Cardiac Arrhythmia Evaluation Center
- CAEC stands for Center for Aquatic Ecology and Conservation (Illinois)
CAEC