| AFIT | Agence Française de l’Ingénierie Touristique | In French | |
| ANET | Austrian Network for eTourism | In English | |
| ANIT | Agence Nationale pour l'Information Touristique | In French | |
| ANVR | Algemeen Nederlands Verbond van Reisondernemingen | In Dutch | → Organizations and associations |
| ANVR | Algemene Nederlandse Vereniging van Reisbureaus | In Dutch | → Organizations and associations |
| ATC | Association Touristique des Cheminots | In French | → Organizations and associations |
| BBS | Berliner Bären Stadtrundfahrt | In German | |
| CDT | Comité Départemental du Tourisme | In French | |
| CFTV | Chemin de Fer Touristique du Vermandois | In French | → Transport and postal services |
| CHA | Caribbean Hotel Association | In English | → Associations |
| CIACH | Centre International des Arts Culinaires et de l'Hotellerie | In French | |
| CNEPT | Centrul Naţional de Educaţie Permanentă în Turism | In Romanian | → Education |
| CNIT | Centrul Naţional de Învăţământ Turistic | In Romanian | |
| CRT | Comité Régional du Tourisme | In French | |
| CRTP | Cultural Restoration Tourism Project | In English | → Civilization, culture, progress |
| ECT | European Cities Tourism | In English | |
| EPH | École Parisienne d’Hôtesses et de Tourisme | In French | → Specialized or (poly)technical colleges |
| ESCT | École Supérieure de Commerce de Tunis (www.esct.rnu.tn) | In French | → Specialized or (poly)technical colleges |
| ETC | European Travel Commission | In English | |
| FDMFR | Fédération Départementale des Maisons Familiales Rurales | In French | |
| FDSR | Front Desk Service Representative | In English | |
| FECOHT | Federación de Comercio, Hostelería y Turismo | In Spanish | → Organizations and associations → Labour, labour economics → Trade |
| FIAVET | Federazione Italiana Associazioni Imprese Viaggi e Turismo | In Italian | → Organizations and associations |
| GITT | Groupement des Industries du Transport et du Tourisme | In French | → Organizations and associations → Transport and postal services |
| ICOTT | International Congress of Official Tourist Traffic Associations | In English | → Organizations and associations |
| ICTC | International City Tourism Conference | In English | |
| IFITT | International Federation of Information Technology and Tourism | In English | → Organizations and associations |
| IMTH | Institut de Marketing, Tourisme et Hôtellerie | In French | → Specialized or (poly)technical colleges |
| ISAT | Institut Spécialisé d'Aviation et de Tourisme (www.isat.ma) | In French | → Specialized or (poly)technical colleges → Transport and postal services |
| ISTK | Internacia Studumo pri Turismo kaj Kulturo | In Esperanto | → Specialized or (poly)technical colleges → Civilization, culture, progress |
| ISTM | International Society of Travel Medicine | In English | → Medicine |
| iTACITUS | Intelligent Tourism And Cultural Information Through Ubiquitous Services | In English | → Networks, communication → Civilization, culture, progress |
| ITT | Information Technology and Tourism | In English | → Serial publications, periodicals |
| IUOTO | International Union of Official Travel Organisations | In English | → Organizations and associations |
| IUOTPO | International Union of Official Tourist Publicity Organizations | In English | → Organizations and associations |
| IYE | International Year of Ecotourism | In English | |
| JITT | Journal of Information Technology and Tourism | In English | → Serial publications, periodicals |
| JTR | Journal of Tourism Research | In English | → Serial publications, periodicals |
| MT | Ministerul Transporturilor, Construcţiilor şi Turismului | In Romanian | → Central administration → Transport and postal services → Building |
| MT | Monda Turismo | In Esperanto | → Organizations and associations |
| NTA | Nippon Travel Agency | In English | |
| ODIT | Observation, Développement et Ingénierie Touristique | In French | |
| ÖHT | Österreichische Hotel- und Tourismusbank (www.oeht.at) | In German | → Financial markets |
| OMT | Organizazion Mondiâl dal Turisim = OMT | Organisation Mondiale du Tourisme | In French = WTO | World Tourism Organization | In English = СТО | Светска туристичка организација | In Russian = OMT | Organização Mundial de Turismo | In Portuguese = OMT | Organizzazione Mondiale del Turismo | In Italian = OMT | Organización Mundial del Turismo | In Spanish |
In Friulian | → United Nations |
| OMT | Organización Mundial del Turismo = WTO, СТО (look above) |
In Spanish | → United Nations |
| OMT | Organizzazione Mondiale del Turismo = WTO, СТО (look above) |
In Italian | → United Nations |
| OMT | Organização Mundial de Turismo = WTO, СТО (look above) |
In Portuguese | → United Nations |
| OMT | Organisation Mondiale du Tourisme = WTO, СТО (look above) |
In French | → United Nations |
| ONT | Office National du Tourisme | In French | → Central administration |
| OT | Office de tourisme | In French | |
| ÖTK | Österreichischer Touristenklub | In German | |
| POT | Polska Organizacja Turystyczna | In Polish | → Organizations and associations |
| SETC | Société d'Exploitation du Tourisme Caribéen | In French | |
| SMT | Suomen Matkatoimisto | In Finnish | |
| SNAV | Syndicat National des Agences de Voyages | In French | → Organizations and associations |
| TTRA | Travel and Tourism Research Association | In English | |
| UTICA | Union Tunisienne de l'Industrie, du Commerce et de l'Artisanat | In French | → Organizations and associations → Industry, industrial policy |
| WTO | World Tourism Organization = OMT, СТО (look above) |
In English | → United Nations |
| СТО | Светска туристичка организација = OMT, WTO (look above) |
In Russian | → United Nations |
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