World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Büsum | DEBUM | Germany |
| Butjadingen | DEBUT | Germany |
| Butler | USBUI | United States of America (the) |
| Butler | USBUJ | United States of America (the) |
| Butrint | ALBUT | Albania |
| Butry-sur-Oise | FRUYO | France |
| Butte Meadows | USBU2 | United States of America (the) |
| Butterfly Bay | CABTF | Canada |
| Butterwick | GBBTZ | United Kingdom |
| Butuan Bay/Masao | PHBXU | Philippines (the) |