| Acronym | Definition |
|---|
| MTIA | Medical Training Institute of America |
| MTIA | Medical Transcription Industry Alliance |
| MTIA | Missouri Telecommunications Industry Association |
| MTIA | Mont Tremblant International Airport (Canada) |
| MTIA | Metal Trades Industry Association of Australia |
| MTIA | Master Trust Investment Account |
| MTIA | Many Thanks In Advance |
| MTIA | Major Transportation Investment Analysis |
| MTIA | Make to Internal Availability (product availability) |
| MTIA | Mt. Tamalpais Interpretive Association |
| MTIA | Missouri Tire Industry Association |
| MTIA | Wolfson Unit for Marine Technology and Industrial Aerodynamics (UK) |
| MTIA | Many Thanks In Anticipation |
| MTIA | Military Training Instructor Association |
| MTIA | Manitoba Transportation Investment Authority |
| MTIA | Modernização Tecnológica da Informática Administrativa |
| MTIA | Manager's Team Impact Assessment |
| MTIA | Mean Time to Install and Adjust (in hours) |
| MTIA | Mètodes i Tècniques de la Intel·ligència Artificial |
| MTIA | Modular Target Identification and Acquisition |