| Acronym | Definition |
|---|
| MSMM➣Mahou Shoujo Madoka Magica (anime) |
| MSMM➣Mirror, Signal, Mirror, Manoeuvre (driver training) |
| MSMM➣Mediterranean School on Mesoscale Meteorology (Sardinia, Italy) |
| MSMM➣Matthew Shepard Myspace Memorial |
| MSMM➣Multiple-Sweep Method of Moments |
| MSMM➣Multi Shot Motion Merge |
| MSMM➣Mitsui Sumitomo Marine Management (USA), Inc. (insurance services management; various locations) |
| MSMM➣Malta Society of Model Makers (est. 2003) |