| Abbreviation | Definition |
|---|---|
| CTH | Certificate in Travel Health |
| CTH | Confederation of Tourism and Hopsitality |
| CTH | Confederation of Tourism and Hospitality |
| CTH | Confederation of Tourism Hospitality |
| CTHAP | Catu Traditional Handicraft Assistance Project |
| CTI | Corner Travel Index |
| CTID | Coronado Tourism Improvement District |
| CTIM | Commercial Travel Information Management |
| CTM | Corporate Travel Management |
| CTMG | Corporate Travel Management Group |
| CTO | Caribbean Tourism Organization |
| CTO | Caribbean Tourist Organisation |
| CTO | Cyprus Tourism Organisation |
| CTO | Cyprus Tourism Organization |
| CTO | Cyrus Tourist Organization |
| CTOA | Coach Tours of Australia |
| CTOO | City Tourism Operations Office |
| CTPR | Centre for Tourism and Policy Research |
| CTPR | Centre for Tourism Policy and Research |
| CTRD | Centre for Tourism Research Development |