| Acronym | Definition |
|---|
| IMAS | Idolm@ster (gaming) |
| IMAS | International Mine Action Standards |
| IMAS | Instituto Mixto de Ayuda Social (Spanish: Joint Social Welfare Institute; Costa Rica) |
| IMAS | International Military Arms Society (New Zealand) |
| IMAS | Intelligent Multiservice Access System (Promatory Communications) |
| IMAS | International Museum of Art and Science (McAllen, Texas) |
| IMAS | Interactive Media Alliance Scotland |
| IMAS | Integrated Multispectral Atmospheric Sounder |
| IMAS | Industrial Management Assistance Survey |
| IMAS | Intersite Mirroring And Switchover (Intergraph) |