MSDI
| Acronym | Definition |
|---|---|
| MSDI | Mid-South Delta Initiative |
| MSDI | Multi Single Document Interface |
| MSDI | Marine Spatial Data Infrastructure |
| MSDI | Multiple Single Document Interface (word processing software) |
| MSDI | Missouri State Debate Institute (Springfield, MO) |
| MSDI | Maine Summer Dramatic Institute (Portland, ME; now defunct) |
| MSDI | Master of Science in Diagnostic Imaging |
| MSDI | Multigated Spectral Doppler Imaging (radiology) |