| Abbreviation | Definition |
|---|---|
| CASP | Children's Aid Society of Pennsylvania |
| CASS | Cooperative Association of States for Scholarship |
| CAS-SEM | Children's Aid Society of Southeastern Michigan |
| CAST | Center for Aging Services Technologies |
| CAST | Children's Aid Society of Toronto |
| CAST | Coalition to Abolish Slavery and Trafficking |
| CAST | Council for Agricultural Science and Technology |
| CAT | Cat Action Team |
| CAT | Cat Adoption Team |
| CATA | Cape Ann Transportation Authority |
| CATI | California Agricultural Technology Institute |
| CATS | Cerebral Aneurysm Tumor Survivors |
| CATS | Chemical Addiction Treatment Solutions |
| CATS | Committed Alliance To Strays |
| CATS | Convert All Tax Systems |
| CATS | Creating Awareness of Teenage Suicide |
| CATW | Coalition Against Trafficking in Women |
| CAUCP | Citizens Against Unfair Cellular Pricing |
| CAYF | Coleman A. Young Foundation |
| CAYSP | Coleman A. Young Scholars Program |