| Abbreviation | Definition |
|---|---|
| BY | Brigham Young |
| BYOB | Brigham Young Ogeling Bath |
| BYU | Booze Yayas for Underclassmen |
| BYU | Brigham Young University |
| BYUI | Brigham Young University Idaho |
| BYUI | Brigham Young UniversityIdaho |
| BYUI | Brigham Young University–Idaho |
| BYUP | Brigham Young University Provo |
| BYYI | Brigham Young Youth Initiative |
| BZU | Bahauddin Zakariya University |
| BZU | Bahauddin Zakariya University, Multan |
| BZU | Bahaudin Zakariya University |
| C | Cancelled |
| C | Class |
| C4AH | Center for Advanced Hindsight |
| CAAA | Canadian Academic Accounting Association |
| CAAC | Certified Approver Advisory Committee |
| CAAGIS | Center for Advanced Applications in Geographic Information Systems (Purdue University; West Lafayette, IN) |
| CAAP | Comprehensive Academic Achievement Plan |
| CAAS | Center for African American Studies |