| Abbreviation | Definition |
|---|---|
| CMTR | Center for Medical Tourism Research |
| CNLT | Cycling No Limit Travel |
| CNR | Corporate Negotiated Rate |
| CNT | Cond?? Nast Traveler |
| CNT | Condé Nast Traveler |
| CNTA | China National Tourism Administration |
| CNTB | Croatian National Tourist Board |
| CNTO | China National Tourist Office |
| COASA | Coach Operators Association of Southern Africa |
| COB | Carry-On Bag |
| COB | Carry-on Baggage |
| COB | Clothing Optional Beach |
| COITS | China Ocean International Travel Service |
| COTHM | College of Tourism and Hospitality Management |
| COTHM | College of Tourism and Hotel Management |
| COTHM | College of Tourism Hotel Management |
| COUTA | Confederation Of Uganda Tourism Association |
| CPA | Community Property Association |
| CPS | Car Pooling Scheme |
| CRDT | Cambodian Rural Discovery Tours |