| Abbreviation | Definition |
|---|---|
| BINF | Nordfjordur, Iceland |
| BIO | Bilbao, Spain |
| BIP | Bulimba, Queensland, Australia |
| BIPA | Patreksfjordur, Iceland |
| BIQ | Biarritz, France |
| BIR | Biratnagar, Nepal |
| BIRG | Raufarhofn, Iceland |
| BIRK | Reykjavik, Iceland |
| BIS | Bismarck, North Dakota USA |
| BISI | Siglufjordur, Iceland |
| BISS | Sandskeid, Iceland |
| BIST | Stykkisholmur, Iceland |
| BITE | Thingeyri, Iceland |
| BITH | Thorshofn, Iceland |
| BIU | Bildudalur, Iceland |
| BIV | Bria, Central African Republic |
| BIVM | Vestmannaeyjar, Iceland |
| BIVO | Vopnafjordur, Iceland |
| BIW | Billiluna, West Australia, Australia |
| BIY | Bisho, South Africa |