World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Markelo | NLMAR | Netherlands |
| Marken | NLMKN | Netherlands |
| Market Bosworth | GBMBT | United Kingdom |
| Markleville | USQMK | United States of America (the) |
| Markt Allhau | ATMKA | Austria |
| Marktrodach | DEMTD | Germany |
| Marlow | DEMLO | Germany |
| Marly | BEMLY | Belgium |
| Marmara Adasi | TRMRA | Türkiye |
| Marmari | GRMRM | Greece |