| Blue Byte | Blue Byte |
| Blue Gene | BlueGene |
| Blue Ridge Mountains | Blue Ridge Mountains |
| Blue screen of death | Blue Screen |
| Blue Train | Blue Train |
| Blue Velvet | Blue Velvet |
| Blue Öyster Cult | Blue Öyster Cult |
| Blue-jeans | Jeans |
| Bluebox | Bluebox |
| Bluefish | Bluefish |
| Bluegrass | Bluegrass |
| Blueprint | Blaupause |
| blues | Blues |
| Blues rock | Bluesrock |
| Bluetooth | Bluetooth |
| Blufar | Bluff |
| Bluff | Bluff |
| Bluma Zeigarnik | Bljuma Wulfowna Seigarnik |
| Blumenstein | Blumenstein BE |
| Blur | Blur |
| blusa | Schürze |
| Blutengel | Blutengel |
| Bluthner | Julius Blüthner Pianofortefabrik GmbH |
| Blástula | Blastula |
| Blériot XI | Blériot XI |
| blíster | Blister |
| Blücher | Blücher |
| Bmi | Bmi |
| BMPs | Bone morphogenetic protein |
| BMW | BMW |
| BMW CS | BMW Concept CS |
| BMX | BMX |
| BNC | BNC-Steckverbinder |
| Bnei Akiva | Bne Akiwa |
| Bnei Brak | Bnei Berak |
| Bnon | Beon |
| Bo Diddley | Bo Diddley |
| boa | Boa |
| boa constrictor | Abgottschlange |
| Boa Vista | Boa Vista |
| BOAC | British Overseas Airways Corporation |
| Boavista Futebol Clube | Boavista Porto |
| Bob | Hati |
| Bob Beamon | Bob Beamon |
| Bob Cousy | Bob Cousy |
| Bob de Moor | Bob de Moor |
| Bob Denard | Bob Denard |
| Bob Dylan | Bob Dylan |
| Bob el constructor | Bob der Baumeister |
| Bob Esponja | SpongeBob Schwammkopf |
| Bob Esponja Pantalones Cuadrados | SpongeBob Schwammkopf |
| Bob Ezrin | Bob Ezrin |
| Bob Fitzsimmons | Bob Fitzsimmons |
| Bob Geldof | Bob Geldof |
| Bob Hardy | Robert Byron Hardy |
| Bob Hayes | Robert Hayes |
| Bob Holly | Robert William Howard |
| Bob Kane | Bob Kane |
| Bob Lazar | Robert Lazar |
| Bob Marley | Bob Marley |
| Bob McAdoo | Bob McAdoo |
| Bob Pettit | Bob Pettit |
| Bob Rafelson | Bob Rafelson |
| Bob Sinclar | Bob Sinclar |
| boba | Tölpel |
