| bivio | bifurcación |
| Bix Beiderbecke | Bix Beiderbecke |
| Bixa orellana | Bixa orellana |
| Bixente Lizarazu | Bixente Lizarazu |
| bizantino | bizantino |
| bizza | rabieta |
| bizzarra | extraño |
| bizzarria | singularidad |
| bizzarro | raro |
| Bière | Bière |
| Bié | Bié |
| Biłgoraj | Biłgoraj |
| Biškek | Biskek |
| Bjarne Stroustrup | Bjarne Stroustrup |
| Bjuv | Bjuv |
| Björk | Björk |
| Björn Borg | Björn Borg |
| Bjørnstjerne Bjørnson | Bjørnstjerne Bjørnson |
| BL | Belluno |
| bla | blablablá |
| bla bla | blablablá |
| bla bla bla | blablablá |
| blablabla | bla bla bla |
| blablablà | palabrerías |
| blablà | palabrerías |
| Black | Negro |
| Black and Blue | Black and Blue |
| Black bloc | Bloque negro |
| Black Book | Black Book |
| Black Canary | Canario Negro |
| Black celebration | Black Celebration |
| Black Consciousness Movement | Black Consciousness Movement |
| Black Dahlia | La Dalia Negra |
| Black Flag | Black Flag |
| Black hat | Cracker |
| Black Hawk Down | Black Hawk down |
| Black Holes and Revelations | Black Holes and Revelations |
| Black il Lupo | Nachi |
| black jack | veintiuno |
| Black Knight | Caballero Negro |
| Black Lotus | Black Lotus |
| Black Mesa | Black Mesa |
| Black Metal Inner Circle | Infierno |
| Black out | Apagón eléctrico |
| Black Rain - Pioggia sporca | Black Rain |
| Black Sabbath | Black Sabbath |
| Black Screen of Death | Black Screen of Death |
| Blackadder | La Víbora Negra |
| BlackBerry | BlackBerry |
| Blackbox | Blackbox |
| Blackburn Buccaneer | Blackburn Buccaneer |
| Blackened death metal | Blackened Death Metal |
| Blackfriars Theatre | Blackfriars |
| Blackjack | Blackjack |
| Blackpool | Blackpool |
| Blacksburg | Blacksburg |
| Blade | Blade |
| Blade II | Blade II |
| Blade Runner | Blade Runner |
| Blag | Blag |
| Blagnac | Blagnac |
| Blaise Compaoré | Blaise Compaore |
| Blaise de Vigenère | Blaise de Vigenere |
| Blaise Pascal | Blaise Pascal |
| Blake e Mortimer | Blake y Mortimer |
| blandamente | suave |
| blandizie | alabanza |
| blando | dulce |
| Blanes | Blanes |
| Blang | Blang |
| Blank verse | Verso blanco |
| Blantyre | Blantyre |
| blasfemia | blasfemia |
| blasfemo | blasfemador |
| blason | blasón |
| blasonare | blasonar |
| blasonatura | blasón |
| blasone | escudo de armas |
| Blast beat | Blast beat |
| Blaster | Blaster |
| Blastocele | Blastocele |
| Blastocerus dichotomus | Blastoceros dichotomus |
| Blastocystis hominis | Blastocystis hominis |
| blastoderma | blastodermo |
| Blastoise | Blastoise |
| Blastoporo | Blastoporo |
| Blastula | Blástula |
| blasé | flato |
| blat | blat |
| blaterare | decir tonterías |
| blatta | cucaracha |
| Blattella germanica | Blattodea |
| Blatten | Blatten |
| Blattodea | Blattodea |
| Blaxploitation | Blaxploitation |
| Blaze Bayley | Blaze Bayley |
| blazer | chaqueta de sport |
| bleah | guácala |
| Bled | Bled |
| Bleda | Bleda |
| Bleed Like Me | Bleed like Me |
| blefarite | blefaritis |
| Blefarospasmo | Blefaroespasmo |
| Bleienbach | Bleienbach |
| Bleiken bei Oberdiessbach | Bleiken bei Oberdiessbach |
| Blekinge | Blekinge |
| Blemma | Blemios |
| Blender | Blender |
| Blenheim Palace | Palacio de Blenheim |
| Blenio | Blenio |
| blenorragia | gonorrea |
| Bletilla | Bletilla |
| Blikanasaurus cromptoni | Blikanasaurus |
| Blind Guardian | Blind Guardian |
| Blind Lemon Jefferson | Blind Lemon Jefferson |
| Blind Willie Johnson | Blind Willie Johnson |
| blindato | blindado |
