World Sea Ports
| Port Name | Port Code | Country Name |
|---|---|---|
| Bluefields | NIBEF | Nicaragua |
| Bluff | NZBLU | New Zealand |
| Blumenthal/Bremen | DEBLM | Germany |
| Blyth | GBBLY | United Kingdom |
| Blyth | GBYTH | United Kingdom |
| Bo'ness | GBBON | United Kingdom |
| Boa Vista do Ramos | BRBVR | Brazil |
| Boac, Marinduque | PHBOA | Philippines (the) |
| Boadilla del Monte | ESBOA | Spain |
| Boao | CNBOA | China |