| Name | Country | Code | Category | Parent Subdivision | Flag |
|---|---|---|---|---|---|
| Mayenne | France | FR-53 | metropolitan department | ||
| Mayotte | France | FR-YT | overseas department | ||
| Mayotte | France | FR-MAY | overseas region | ||
| Mayotte | France | FR-YT | Overseas departments | ||
| Meurthe-et-Moselle | France | FR-54 | metropolitan department | ||
| Meuse | France | FR-55 | metropolitan department | ||
| Morbihan | France | FR-56 | metropolitan department | ||
| Moselle | France | FR-57 | metropolitan department | ||
| Nièvre | France | FR-58 | metropolitan department | ||
| Nord | France | FR-59 | metropolitan department |