| Acronym | Definition |
|---|
| IATC | International Association of Theatre Critics |
| IATC | International Air Taxi Convention |
| IATC | Issaquah Alps Trails Club (Issaquah, WA) |
| IATC | Iowa Association of Track Coaches |
| IATC | Interim Approval To Connect |
| IATC | International Appliance Technical Conference & Exhibition |
| IATC | Implante Auditivo de Tronco Cerebral (Spanish: audio implant) |
| IATC | International Aviation Training Centre (Ukraine) |
| IATC | International Automobile and Touring Club |
| IATC | International Adventure Therapy Conference (UK) |
| IATC | Integration, Assembly, Test and Checkout |
| IATC | Irish Anti-Trafficking Coalition |
| IATC | International Association of Trauma Counseling |
| IATC | International Association of Torch Clubs, Inc (Norfolk, Virginia) |
| IATC | In All Things Charity |
| IATC | International Accountancy Training Center |
| IATC | Integrated Tactical Aircraft Control |
| IATC | International Agri-Technology Centre Ltd (UK) |
| IATC | Isothermal Acid-Titration Calorimetry |
| IATC | Irish Amateur Television Club |
| IATC | Iranian Air Transport Company |
| IATC | Insurance Advisor Training Centre (Canada) |
| IATC | International Advisory Technical Council |
| IATC | International Air Taxi and Charter (Convention) |
| IATC | Industrial Automation Training Centre (India) |
| IATC | Investment Advisor Training Centre |
| IATC | International Aviation Technical Committee (Canada) |
| IATC | Italian Antiretroviral Treatment Cohort |
| IATC | International Art Trade Company |
| IATC | Inokom Automotive Training Center (Malaysia) |
| IATC | Industrial Advisory Training Committee |