| CASD | California Area School District 
| Others |
| CASD | Canton Area School District
| Others |
| CASD | Carlisle Area School District
| Others |
| CASD | Carrier Aircraft Service Detachment
| Others |
| CASD | Center for Applied Structural Discovery
| Others |
| CASD | Center for Autism Spectrum Disorders
| Others |
| CASD | Center for Autistic Spectrum Disorders
| Others |
| CASD | Central Asian Shepherd Dog
| Others |
| CASD | Certificate Authority Security Domain
| Others |
| CASD | Chambersburg Area School District
| Others |
| CASD | Change Agent States for Diversity
| Others |
| CASD | Checklist for Autism Spectrum Discorder
| Others |
| CASD | Checklist for Autism Spectrum Disorder
| Others |
| CASD | Clay Artists of San Diego
| Others |
| CASD | Coatesville Area School District
| Others |
| CASD | Common Action for Sustainable Development
| Others |
| CASD | Computer Aided Seals Design
| Others |
| CASD | Conference on Applied Statistics in Defense
| Others |
| CASD | Connellsville Area School District
| Others |
| CASD | Consumer Attorneys of San Diego
| Others |
| CASD | Continuous At Sea Deterrent
| Others |
| CASD | Contract Administration Services Directory
| Others |
| CASD | Corry Area School District
| Others |
| CASD | Coudersport Area School District
| Others |
| CASD | Crawford AuSable School District
| Others |