| Abbreviation | Definition |
|---|---|
| ITOC | International Travel Oversight Committee |
| ITOT | Inbound Tourism Operators of Tasmania |
| ITOT | Independent Tourism Operators of Tasmania |
| ITP | International Travel Partnership |
| ITR | International Travel Registry |
| ITRR | Institute for Tourism and Recreation Research |
| ITRR | International Travel Risk Review |
| ITS | Internet Travel Services |
| ITSG | International Travel Supplemental Grants |
| ITT | Information Tickets and Tours |
| ITT | Information Tickets and Travel |
| ITT | Information Tickets Travel |
| ITTH | Introduction to the Hills |
| ITTH | Introduction to Travel Tourism and Hospitality |
| ITTN | Irish Travel Trade News |
| IVT | International VIP Travel |
| JABBA | James Brown Ave |
| JATA | Japan Association of Travel Agents |
| JBH | Jumeirah Beach Hotel |
| JCHA | Japan City Hotel Association |