| Name | Level | Attributes | Sources | |
|---|---|---|---|---|
| Mercenary | 1 - 15 | |||
| Metalworking Vendor | 1 | |||
| Mining NPC | ? | |||
| Mining Vendor | 1 - 25 | |||
| Mino Mummy Berserker | ? | |||
| Miserable Dustpaw | 29 | |||
| Molten Queen | 22 | |||
| Moonshrieker Gluf | 15 | |||
| Morax, the Iron Spike | 15 | |||
| Morax, The Iron Spike | 15 | |||
| Morellius The Essence Gorged | 22 | |||
| Mossback Bear | ? | |||
| Mournful Revenant | 7 - 14 | |||
| Muckmaw Bone Rattler | 6 - 7 | |||
| Muckmaw Grave Digger | 6 - 7 | |||
| Muckmaw the Flayer | 3 | |||
| Mudpickler | ? | |||
| Mycellete | 4 - 20 | |||
| Mycellion | 3 - 21 | |||
| Najash | 20 - 30 | |||
| Najash Ambusher | 9 - 12 | |||
| Najash Hunter | 20 - 30 | |||
| Najash Huntmaster | 20 - 22 | |||
| Najash Negotiator | 30 | |||
| Najash Predator | 20 - 30 | |||
| Najash Venomlash | 27 - 30 | |||
| Najash Warriors | 30 | |||
| Nangolith the Spinner | 6 | |||
| Nearly Dead Prisoner | 30 - 33 | |||
| Nightmare Amalgam | 18 |