| Abbreviation | Definition |
|---|---|
| LYCKRR | Lynas Corporation Limited |
| LYL | Lycopodium Ltd |
| MAB | Mamba Minerals Ltd |
| MABOA | Mamba Minerals Limited |
| MAC | Macro Corporation Ltd |
| MAD | Maverick Drilling and Exploration, Limited |
| MAE | Marion Energy Ltd |
| MAEOA | Marion Energy Limited |
| MAH | Macmahon Holdings Ltd |
| MAK | Minemarkers |
| MAL | Matilda Minerals (de-listed; now part of BWD, Blackwood Corporation, LTD.) |
| MAM | Aii S&P/ASX 300 Metals & Mining |
| MAM | Aii SP/ASX 300 Metals Mining |
| MAN | Magna Mining Ltd |
| MANCA | Magna Mining Ltd |
| MAP | Macquarie Airports |
| MAPKOA | Map Group |
| MAPKRA | Map Group |
| MAQ | Macquarie Telecom Group Ltd |
| MAR | Malachite Resources, Limited |