| Term | Definition / Meaning / Stand for |
| IC |
International Conference |
| ICTA |
Institute of Certified Travel Agents |
| ID |
Identification |
| IFP |
International Food Products |
| IFTTA |
International Forum of Travel and Tourism Advocates |
| IGA |
International Guest Assistance |
| IGS |
International Guest Services |
| IHG |
InterContinental Hotels Group |
| IHMC |
Imperial Hotel Management College |
| ILHA |
International Luxury Hotel Association |
| ILL |
Initial Look Level |
| IM |
Instant Messaging |
| IP |
Internet Protocol |
| IQ |
Intelligence Quotient |
| IRD |
In-Room Dining |
| IRT |
Incident Report Tracking |
| IT |
Information Technology |
| JCP |
Job Completion Plan |
| JER |
Job Evaluation Report |
| JHR |
Job Hiring Request |
| JHTC |
Jaypee Hotel Training Centre |
| JIB |
Job Information Bulletin |
| JLC |
Job Location Coordination |
| JMR |
Job Manager Report |
| JMT |
Job Management Tool |
| JND |
Job Needs Determination |
| JOM |
Job Order Management |
| JPR |
Job Performance Review |
| JSG |
Job Scheduling Group |
| JTA |
Job Task Allocation |
| JTA |
Job Training Assistance |
| JTR |
Job Transfer Request |
| JVC |
Job Vacancy Chart |
| KAP |
Key Activity Plan |
| KAT |
Key Account Tracking |
| KFP |
Key Focus Program |
| KIC |
Key Incentive Calculation |
| KID |
Key Insight Data |
| KLD |
Key Location Data |
| KMC |
Key Management Committee |
| KOC |
Key Operational Control |
| KSR |
Key Service Request |
| KSS |
Key Supplier Selection |
| KTS |
Key Talent Search |
| KVR |
Key Vendor Relationship |
| KYC |
Know Your Customer |
| LBE |
Location-Based Experience |
| LBM |
Luxury Brand Management |
| LBT |
Last Booking Time |
| LCC |
Low-Cost Carrier |
| LDT |
Local Delivery Time |
| LFP |
Last Floor Plan |
| LHR |
London Heathrow Airport |
| LID |
Location Identification |
| LNR |
Late Night Reception |
| LOC |
Location |
| LQA |
Leading Quality Assurance |
| LRA |
Local Rate Agreement |
| LRM |
Leisure Rate Model |
| LSV |
Low-Speed Vehicle |
| LTI |
Loss Time Incident |
| LTV |
Lifetime Value |
| LUV |
Love (brand slogan or concept) |
| LVA |
Loyalty Value Add |
| MAF |
Marketing Authorization Form |
| MBB |
Market-Based Business |
| MBR |
Member Rate |
| MCT |
Meeting Confirmation Ticket |
| MDA |
Market Development Assistance |
| MDP |
Manager Development Program |