| River Name | Wikipedia Link | Notes |
|---|
| Mohne | https://en.wikipedia.org/wiki/Möhne |
|
| Main | https://en.wikipedia.org/wiki/Main_(river) |
|
| Mur | https://en.wikipedia.org/wiki/Mur_(river) |
|
| Marne | https://en.wikipedia.org/wiki/Marne_(river) |
|
| Meza | https://en.wikipedia.org/wiki/Meža |
|
| Meuse | https://en.wikipedia.org/wiki/Meuse |
|
| Moselle | https://en.wikipedia.org/wiki/Moselle |
|