| Abbreviation | Definition |
|---|---|
| ICMA | International Cruise Management Agency |
| ICRT | International Centre for Responsible Tourism |
| ICRT | Irish Centre for Responsible Tourism |
| ICTA | Institute of Certified Travel Agents |
| ICTP | International Coalition of Tourism Partners |
| IDTR | Institute for Dark Tourism Research |
| IETH | International Economics Tourism Hospitality |
| IETH | International Exhibition for Tourism and Heritage |
| IETS | International Education Travel Scholarship |
| IFTO | India Food Tourism Organisation |
| IGIT | Incentive Group Inna Travel |
| IGTM | International Golf Travel Market |
| IHTB | International Hospitality and Tourism Business |
| IITS | International Institute of Tourism Studies |
| IJCT | International Journal of Contents Tourism |
| ILHA | International Luxury Hotel Association |
| ILTM | International Luxury Travel Market |
| ILTM | International Luxury Travel Marketplace |
| IMTC | International Marketing Travel Concepts |
| IMTD | India Medical Tourism Destination |