| Abbreviation | Definition |
|---|---|
| CDS | Covenant Day School |
| CDSD | Central Dauphin School District |
| CDSW | Childrens Day School of Wilton |
| CDTS | Central Detective Training School |
| CDTS | Cranbourne Dog Training School |
| CDTS | Crossroads Discipleship Training School |
| CEBS | Chitwan English Boarding School |
| CEHS | Cape Elizabeth High School |
| CEHS | Central Etobicoke High School |
| CEHS | Cheyenne East High School |
| CEHS | Clovis East High School |
| CEHS | Columbus East High School |
| CELS | Clare English Language School |
| CEMS | Camp Ernst Middle School |
| CES | Carrollton Elementary School |
| CES | Ch??vez Elementary School |
| CES | Chávez Elementary School |
| CES | CivilEngSchool |
| CESD | Centralia Elementary School District |
| CESJDS | Charles E Smith Jewish Day School |