| BSc | licenciado en ciencias |
| BSC Young Boys | BSC Young Boys |
| BSD Daemon | Beastie |
| BSD licenses | Licencia BSD |
| BSE Sensex | BSE Sensex |
| Bsharri | Becharré |
| Bsr | Río Obi |
| BTX | BTX |
| Buada | Buada |
| Bubal | Alcelaphus buselaphus |
| Bubalus | Bubalus |
| Bubanza Province | Provincia de Bubanza |
| Bubastis | Bubastis |
| Bubba Ho-tep | Bubba Ho-Tep |
| bubble | burbuja de aire |
| bubble bath | baño de burbujas |
| bubble butt | culón |
| Bubble car | Microcoche |
| bubble gum | goma de mascar |
| bubble over | desbordarse |
| bubble policy | política de burbuja |
| Bubblegum Crisis | Bubblegum Crisis |
| Bubblegum pop | Bubblegum pop |
| bubbling | gaseoso |
| bubbly | burbujeante |
| Bube language | Idioma bubi |
| bubo | bubón |
| bubonic | bubónico |
| bubonic plague | peste bubónica |
| Buc | Buc |
| Bucalemu | Bucalemu |
| Bucaramanga | Bucaramanga |
| Bucarest | Bucarest |
| buccal | bucal |
| buccaneer | corsario |
| Buccina | Buccina |
| Buccinator muscle | Buccinador |
| Bucculatricidae | Bucculatricidae |
| Bucegi Mountains | Bucegi |
| Bucellarius | Bucelario |
| Bucephalus | Bucéfalo |
| Bucharest | Bucarest |
| Bucharest Stock Exchange | Bolsa de Bucarest |
| Buchen | Fagus |
| Buchenwald concentration camp | Campo de concentración de Buchenwald |
| Buchholterberg | Buchholterberg |
| Buchillon | Buchillon |
| Buchloe | Buchloe |
| Buchner funnel | Ampolla de decantación |
| Buchs | Buchs |
| buck | ciervo |
| Buck converter | Convertidor Buck |
| Buck House | Palacio de Buckingham |
| Buck Rogers | Buck Rogers |
| buck up | animarse |
| bucket | cubo |
| bucketful | cubo |
| Buckfast bee | Abeja Buckfast |
| bucking | sacudida |
| Buckingham | Buckinghamshire |
| Buckingham Palace | Palacio de Buckingham |
| Buckingham π theorem | Teorema de Vaschy-Buckingham |
| Buckinghamshire | Buckinghamshire |
| buckle | corchete |
| buckle up | abrochar |
| buckler | hebilla |
| Buckminster Fuller | Richard Buckminster Fuller |
| buckram | bucarán |
| bucksaw | sierra de bastidor |
| buckshot | perdigón zorrero |
| buckskin | cuero de ante |
| bucktooth | diente saliente |
| buckwheat | alforjón |
| bucolic | campesino |
