World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Mannsville | USNSV | United States of America (the) |
| Manokwari, Irian Jaya | IDMKW | Indonesia |
| Manombo | MGMOB | Madagascar |
| Manori | INMNR | India |
| Manta | ECMEC | Ecuador |
| Mantang, Riau | IDMNT | Indonesia |
| Mantua | USQMU | United States of America (the) |
| Mäntyluoto | FIMTY | Finland |
| Manzanillo | CUMZO | Cuba |
| Manzanillo | DOMAN | Dominican Republic |