| Abbreviation | Definition |
|---|---|
| CLAS | Center for Latin American Studies |
| CLLN | Colorado Latin Leadership Network |
| CLSA | Classical Latin School Association |
| CN | Caccia Notturna |
| CNLS | Centre for Neo Latin Studies |
| CPLA | Cleaning Products Latin America |
| CQ | Cronartium Quercuum |
| CRLS | Cambridge Rindge and Latin School |
| CSB | Congregatio Sancti Basilii |
| CSLD | Connecticut State Latin Day |
| CSV | Corpus Sanguis Vinculum |
| CT | Cum Tempore |
| CTA | Cum Testamento Annexo |
| CUS | Corazones Unidos Siempre |
| CVA | Corpus Vasorum Antiquorum |
| D | Dies |
| DBA | De Bellis Antiquitatis |
| DBF | De Bellis Fantasticus |
| DBM | De Bellis Multitudinis |
| DDN | De Divinus Nominibus |