| Acronym | Definition |
|---|
| IIID➣International Institute for Information Design |
| IIID➣Indian Institute of Interior Designers (professional interior designers organization; Mumbai, India) |
| IIID➣Institute for Interreligious Intercultural Dialogue |
| IIID➣International Institute of Integral Development (Canada) |
| IIID➣Institute for Immunology and Infectious Diseases (Murdoch University; Perth, Western Australia, Australia) |
| IIID➣Islamic Institute for Interfaith Dialogue (Ontario, Canada) |