| Abbreviation | Definition |
|---|---|
| MDLA | Massachusetts Defense Lawyers Association |
| MDLA | Minnesota Defense Lawyers Association |
| MDLO | Michel Drapeau Law Office |
| MDN | Mobile Data Network |
| MDNF | Maternal Death Notification Form |
| MDOP | Malicious Destruction of Property |
| MDP | Maldivian Drug Party |
| MDP | Murder Dem P*****s (gang) |
| MDSO | Mentally Disordered Sex Offender |
| MDT | Mobile Data Terminal |
| MDTD | Mortgage by Deposit of Title Deeds |
| MDUM | Medical Doctors Union of Malawi |
| ME | Mostly Enraging |
| MEAM | Making Every Adult Matter |
| MEC | Modified Endowment Contract |
| MED | Marijuana Enforcement Division |
| MED | Mediator |
| MELJ | Michigan Environmental Law Journal |
| MELSA | Middle Eastern Law Student Association |
| MELSA | Middle Eastern Law Students Association |