CEF
- Bishops' Conference of France
- Caixa Econômica Federal
- Canadian Expeditionary Force
- Central Experimental Farm
- Chapel-en-le-Frith railway station
- Child Evangelism Fellowship
- Chinese Expeditionary Force
- Chromium Embedded Framework
- Cisco Express Forwarding
- Closed-end fund
- Cluster of Excellence Frankfurt Macromolecular Complexes
- Common European Framework of Reference for Languages
- Connecting Europe Facility
- Conseil des écoles fransaskoises
- Conservative European Forum
- Constructions électriques de France
- Czech Air Force
- French Expeditionary Corps (1943–44)
- Westover Air Reserve Base
- Westover Metropolitan Airport