| IHTC | In Hand Therapy Course 
| Others |
| IHTC | Indiana Heat Transfer Corp
| Others |
| IHTC | Indiana Hemophilia Thrombosis Center
| Others |
| IHTC | Industrial Heartland Trails Coalition
| Others |
| IHTC | Interfacial heat transfer coefficient
| Others |
| IHTC | Interim Human Tended Capability
| Others |
| IHTC | International Health Tourism Center
| Others |
| IHTC | International Healthcare Tourism Congress
| Others |
| IHTC | International Heat Transfer Conferences
| Others |
| IHTC | International Hemophilia Training Centre
| Others |
| IHTC | International High Technologies Consulting
| Others |
| IHTC | International Hospitality Tourism Conference
| Others |
| IHTC | International Humanitarian Technology Conference
| Others |
| IHTC | Interpacific Highway Transport Corporation
| Others |