| IDEM | Imaging Diffusive Electro Magnetic 
| Others |
| IDEM | Indiana Department of Environmental Management
| Others |
| IDEM | Industrial Designers Educational Meeting
| Others |
| IDEM | Instituto de Derechos de la Mujer
| Others |
| IDEM | Integrated Database for Early music
| Others |
| IDEM | Integrated Development Environment for Music
| Others |
| IDEM | International Distributors of Electronics for Medicine
| Others |
| IDEM | Iranian Diesel Engine Manufacturing
| Others |
| IDEM | Iranian Diesel Manufacturing Company
| Others |
| IDEM | Italian DErivatives Market
| Others |