| Code | Name | Region |
|---|---|---|
| NLMBK | Milsbeek | GE |
| NLM9G | Minnertsga | FR |
| NLMOE | Moerdijk | |
| NLMGS | Moergestel | NB |
| NLMKP | Moerkapelle | |
| NLMSN | Moerstraten | NB |
| NLMOG | Molenaarsgraaf | |
| NLMGT | Molengat | NH |
| NLMOL | Molenhoek | LI |
| NLMOT | Molenschot | NB |
| NLMLW | Molenwaard | ZH |
| NLMWU | Molkwerum | FR |
| NLMNN | Monnickendam | |
| NLMON | Monster | |
| NLMTL | Montferland | GE |
| NLMNT | Montfoort | |
| NLMEH | Mesch | LI |
| NLGE7 | Meteren | GE |
| NLMTK | Meterik | LI |
| NLMLA | Middelaar | LI |
| NLMDB | Middelbeers | |
| NLMID | Middelburg | |
| NLMDL | Middelburg | ZE |
| NLMIH | Middelharnis | |
| NLMVE | Middelie | |
| NLMDU | Middelstum | GR |
| NLMIZ | Midden Zeeland Apt | ZE |
| NLMDI | Middenbeemster | NH |
| NLMDF | Midden-delfland | ZH |
| NLMDD | Midden-drenthe | DR |
| NLZBD | Middenmeer | NH |
| NLMWD | Midwolda | GR |
| NLMIE | Mierlo | NB |
| NLMIJ | Mijdrecht | |
| NLMNH | Mijnsheerenland | |
| NLMDT | Mildert | LI |
| NLMEK | Meeden | GR |
| NLMEE | Meer | |
| NLMKK | Meerkerk | |
| NLMEW | Meerlo-wansum | |
| NLMES | Meers | |
| NLMRN | Meerssen | LI |
| NLMWE | Meeuwen | NB |
| NLMEG | Megchelen | GE |
| NLMGN | Megen | NB |
| NLMEJ | Meijel | LI |
| NLMDO | Melderslo | |
| NLMCK | Melick | |
| NLMKU | Meliskere | ZE |
| NLMSA | Melissant | ZH |