| Abbreviation | Definition |
|---|---|
| IRSHDC | Indian Residential School History & Dialogue Centre |
| ISAD(G) | General International Standard Archival Description |
| ISAF | International Shark Attack File |
| ISGM | Isabella Stewart Gardner Museum |
| ISTC | International Science and Technology Center |
| IUAM | Indiana University Art Museum |
| IVDM | Imperial Valley Desert Museum |
| IWM | Imperial War Museum |
| IWM | Imperial War Museum (London) |
| IWM | Imperial War Museums |
| JANM | Japanese American National Museum |
| JCM | Jewish Children's Museum |
| JCMA | Juniata College Museum of Art |
| JCSM | Japanese Council of Science Museums |
| JCSM | Jule Collins Smith Museum |
| JCSM | Jule Collins Smith Museum of Fine Art at Auburn University |
| JDCM | Juneau Douglas City Museum |
| JEMA | John Erickson Museum of Art |
| JHM | Johnson- Humrickhouse Museum |
| JHM | Joods Historisch Museum |