| Abbreviation | Definition |
|---|---|
| MLEB | Minnesota Lions Eye Bank |
| MLEB | Moorfields Lions Eye Bank |
| MLFC | Merryl Lynch Financial Centre |
| MLI | Member Lending Institution |
| MLIB | Merrill Lynch International Bank |
| mm | margin money |
| MMBB | Maine Municipal Bond Bank |
| MMBB | Minnesota Milk Bank for Babies |
| MMID | Mobile Money Identification Number |
| MMNB | Mechanics and Metals National Bank |
| MMT | MasterCard Money Transfer |
| MMT | Modern Monetary Theory |
| MMTB | Mid Michigan Time Bank |
| MNB | Magyar Nemzeti Bank |
| MNB | Mahopac National Bank |
| MNB | Malvern National Bank |
| MNB | McCook National Bank |
| MNB | Metropolitan National Bank |
| MNB | Michigan National Bank |
| MNB | Millbury National Bank |