| Abbreviation | Definition |
|---|---|
| MSPCL | Michigan State Police Crime Laboratory |
| MSR | Municipal Sewage Regulation |
| MSTH | McNeely, Stephenson, Thopy, and Harrold law firm |
| MSTL | Model State Trademark Law |
| MSU | Minimum Security Unit |
| MT | Most Troublesome |
| MTAC | Multiple Threat Alert Center |
| MTAC | Multiple Threat Assessment Center |
| MTB | Man That's Bad |
| MTD | Motion To Dismiss |
| MTLA | Maine Trial Lawyers Association |
| MTLA | Maryland Trial Lawyers Association |
| MTLA | Minnesota Trial Lawyers Association |
| MTLA | Montana Trial Lawyers Association |
| MTLB | Manasota Trial Lawyers Board |
| MTLS | Metro Tenants Legal Services |
| MTRP | Motion to Revoke Probation |
| MTTA | Malawi Teacher Training Activity |
| MUA | Manipulation Under Anesthesia |
| MULC | Monash University Law Chambers |