Seaports
| Seaport Name | Seaport Code | Country |
|---|---|---|
| Manaus | BRMAO | Brazil |
| Madre De Deus | BRMDD | Brazil |
| Maceio | BRMCZ | Brazil |
| Moudi Terminal | NGMOT | Cameroon |
| Moudi Terminal | NGMOT | Cameroon |
| Montreal | CAMTR | Canada |
| Mont Louis | CAMOL | Canada |
| Matane | CAMAN | Canada |
| Maitland Harbour | CAMAT | Canada |
| Maitland (Port) | CAMAT | Canada |
| Moncton | CAMNT | Canada |
| Mamonal | COMAM | Colombia |
| Moroni | KMYVA | Comoros |
| Moanda Terminal | ZRMOA | Congo (Kinshasa) |
| Matadi | ZRMAT | Congo (Kinshasa) |
| Moin Bay | CRMOB | Costa Rica |
| Matanzas | CUQMA | Cuba |
| Mariel | CUMAR | Cuba |
| Manzanillo (Cub) | CUMZO | Cuba |
| Morphou Bay | CYMPB | Cyprus |