| Abbreviation | Definition |
|---|---|
| CSD | Clatskanie School District |
| CSD | Colebrook School District |
| CSD | Cooperating School Districts |
| CSD | Custer School District |
| CSDA | Clover School District Auditorium |
| CSDB | Colorado School for the Deaf and Blind |
| CSDB | Colorado School For The Deaf and The Blind |
| CSDCCS | Conseil Scholaire District Catholique Centre-Sud |
| CSDF | California School for the Deaf Fremont |
| CSDM | Commission Scolaire De Montréal |
| CSDO | Catholic Schools Diocese of Oakland |
| CSDP | Center for School and District Partnership |
| CSDR | California School for the Deaf Riverside |
| CSDR | California School for the Deaf, Riverside |
| CSE | Copenhagen School of Entrepreneurship |
| CSEA | California School Employees Association |
| CSEF | Clarence Schools Enrichment Foundation |
| CSES | Carderock Springs Elementary School |
| CSES | Catawba Springs Elementary School |
| CSES | Cave Spring Elementary School |