World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| John F Kennedy Space Center/Cape Canaveral | USKDC | United States of America (the) |
| John O'Groats | GBJOG | United Kingdom |
| Johnsburg | USJBG | United States of America (the) |
| Johnshaven | GBJHV | United Kingdom |
| Johnson | USJOA | United States of America (the) |
| Johnston Atoll | UMJON | United States Minor Outlying Islands |
| Johnstonebridge | GBJTB | United Kingdom |
| Johor Bahru | MYJHB | Malaysia |
| Joigny | FRUXE | France |
| Jokawauchi | JPJKW | Japan |