World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Niagara Falls | CANIA | Canada |
| Niagara-on-the-Lake | CANOL | Canada |
| Nianshanyapojiao | CNNSY | China |
| Niau | PFTUP | French Polynesia |
| Nicaro | CUICR | Cuba |
| Nice | FRNCE | France |
| Nicha | CNNCA | China |
| Nichinan | JPNIC | Japan |
| Nicholls | USICH | United States of America (the) |
| Nickelsdorf | ATND2 | Austria |