| Abbreviation | Definition |
|---|---|
| MMS | McMillan Shakespeare Ltd |
| MMW | Magma Metals Limited. |
| MMX | Murchison Metals Ltd |
| MMZ | Mooter Media Ltd |
| MNB | Minbos Resources Limited |
| MNC | Metminco Ltd |
| MNCO | Metminco Ltd |
| MND | Monadelphous Group Ltd |
| MNDKMA | Monadelphous Group Limited |
| MNDKOA | Monadelphous Group Limited |
| MNDKOP | Monadelphous Group Limited |
| MNDKRB | Monadelphous Group Limited |
| MNDKRC | Monadelphous Group Limited |
| MNDKRE | Monadelphous Group Limited |
| MNDKRP | Monadelphous Group Limited |
| MNDKRQ | Monadelphous Group Limited |
| MNDKRR | Monadelphous Group Limited |
| MNE | Mining Group Limited |
| MNEO | Mining Group Limited |
| MNF | My Net Fone Ltd |