| bröstkorg | pecho |
| Bröstkörtlar | Mama |
| bröstmjölk | leche materna |
| bröstpump | sacaleche |
| bröstsim | brazada de pecho |
| bröstvärn | parapeto |
| bröstvärn med tinnar | parapeto |
| bröstvårta | pezón |
| Brøndby kommun | Brøndby |
| Brønnøy kommun | Brønnøy |
| Brügg | Brügg |
| Brüttelen | Brüttelen |
| Brăila | Brăila |
| BS | Brescia |
| BSC Young Boys | BSC Young Boys |
| BSD | Berkeley Software Distribution |
| BSD-licenser | Licencia BSD |
| Btu | BTU |
| BTX | BTX |
| bu | bú |
| bua | abuchear |
| Buada | Buada |
| Bubanza | Provincia de Bubanza |
| Bubastis | Bubastis |
| Bubba Ho-tep | Bubba Ho-Tep |
| bubbel-policy | política de burbuja |
| bubbelbad | remolino |
| bubbelgum | goma de mascar |
| Bubbelkammare | Cámara de burbujas |
| Bubbelminne | Memoria de burbuja |
| bubbla | burbuja |
| bubblande | gaseoso |
| Bubble sort | Ordenamiento de burbuja |
| Bubblegum Crisis | Bubblegum Crisis |
| Bubo | Bubo |
| Bucaramanga | Bucaramanga |
| Bucentaur | Bucintoro |
| Buchara | Bujara |
| Buchenwald | Campo de concentración de Buchenwald |
| Buchholterberg | Buchholterberg |
| Buchillon | Buchillon |
| Buchis | Bujis |
| Buchs | Buchs |
| Buck Rogers | Buck Rogers |
| Buckingham Palace | Palacio de Buckingham |
| Buckinghamshire | Buckinghamshire |
| buckla | abolladura |
| Buckminster Fuller | Richard Buckminster Fuller |
| Bucolica | Bucólicas |
| bud | mandato |
| Bud Spencer | Bud Spencer |
| Budapest | Budapest |
| Budapest-Bamako | Budapest-Bamako |
| Budapests tunnelbana | Metro de Budapest |
| Budbärar-RNA | ARN mensajero |
| Buddha | Buda |
| buddhism | budismo |
| buddhist | budista |
| buddhistisk | budista |
| buddism | budismo |
| buddistisk | budista |
| Buddlejor | Buddleja |
| Buddy Bär | United Buddy Bears |
| Buddy Holly | Buddy Holly |
| Budge Patty | Budge Patty |
| budget | presupuesto |
| budgetera | presupuestar |
| budgetpolicy | política presupuestaria |
| budgetär | presupuestario |
