| Abbreviation | Definition |
|---|---|
| CELN | Certificate of Education Leadership in Nunavut |
| CELN | Certificate of Educational Leadership in Nunavut |
| CELTA | Certificate of English Language Teaching to Adults |
| CELTA | Certification of English Language Teaching to Adults |
| CEM | Certified Endorsement Management |
| CEMD | Certificate in Executive and Management Development |
| CEN | Certification in Emergency Nursing |
| CEN | Certified Emergency Nursing |
| CENP | Certified in Executive Nurse Practice |
| CEOE | Certification Exams for Oklahoma Educators |
| CEOE | Certified Educational Office Employee |
| CEOE | Certified Engineering Operations Executive |
| CEOO | Certified Expert Offensive Operator |
| CEPA | Certified Exit Planning Advisor |
| CEPC | Certified Engagement Productivity Coach |
| CEPC | Certified Executive Pastry Chef |
| CEPD | Certificate in Education Participatory Development |
| CEPE | Certified Energy Plans Examiner |
| CEPF | Certified Educator in Personal Finance |
| CEQ | Certificate of Enhanced Qualifications |