| buttare fuori | throw out |
| buttare giù | pull down |
| buttare il bambino con l'acqua sporca | throw the baby out with the bathwater |
| buttare sangue | bleed |
| buttare via | trash |
| buttato | thrown |
| Butte | Conical hill |
| Butte County | Butte County |
| Buttenheim | Buttenheim |
| Buttenwiesen | Buttenwiesen |
| butterato | pockmarked |
| Butteratura | Cut tobacco |
| buttero | pit |
| Buttisholz | Buttisholz |
| Buttwil | Buttwil |
| Butuan | Butuan City |
| Butzbach | Butzbach |
| Buus | Buus |
| Buwayhidi | Buyid dynasty |
| Buxaceae | Buxaceae |
| Buxheim | Buxheim |
| Buxtehude | Buxtehude |
| Buxus | Buxus |
| Buxus sempervirens | Buxus sempervirens |
| Buy U A Drank | Buy U a Drank |
| Buyeo | Buyeo |
| Buzen | Buzen Province |
| Buzz Aldrin | Buzz Aldrin |
| Buzz Lightyear da Comando Stellare | Buzz Lightyear of Star Command |
| Buzzcocks | Buzzcocks |
| Buzzer beater | Buzzer beater |
| buzzurro | bumpkin |
| Buzău | Buzău |
| Bušince | Bušince |
| BV | BV |
| BW | BW |
| Bwin | Bwin |
| BX | BX |
| Byakuya Kuchiki | Byakuya Kuchiki |
| Byblis | Byblis |
| Byblos | Byblos |
| Bydgoszcz | Bydgoszcz |
| Bygland | Bygland |
| Bykle | Bykle |
| Bylina | Bylina |
| BYOB | BYOB |
| bypass | bypass |
| Bypass aorto-coronarico | Coronary artery bypass surgery |
| Byram | Byram |
| Byron Scott | Byron Scott |
| Byronosaurus jaffei | Byronosaurus |
| Bystričany | Bystričany |
| byte | byte |
| Byte Order Mark | Byte-order mark |
| Bytecode | Bytecode |
| Bytom | Bytom |
| Bytownite | Bytownite |
| Bytów | Bytów |
| BZ | BZ |
| Bzura | Bzura |
| Bàltico | Baltic |
| bàrbaro | barbaric |
| Bàssora | Basra |
| bàttersela | make |
| bàvero | collar |
| Báb | Báb |
| Bács-Bodrog | Bács-Bodrog |
| Bács-Kiskun | Bács-Kiskun |
| Bátorová | Bátorová |
| Bächingen an der Brenz | Bächingen |
| Bärenthal | Bärenthal |
| Bäretswil | Bäretswil |
| Bärnau | Bärnau |
| Bärnbach | Bärnbach |
| Bärschwil | Bärschwil |
| Bätterkinden | Bätterkinden |
| Båtsfjord | Båtsfjord |
| Bærum | Bærum |
| Bègles | Bègles |
| Bèlgida | Bèlgida |
| bètvola | pub |
| Béal an Mhuirthead | Belmullet |
| Béarla | Béarla |
| Bécancour | Bécancour |
| Béchar | Béchar |
| Bédarieux | Bédarieux |
| Béduer | Béduer |
| Béja | Béja Governorate |
| Béjaïa | Béjaïa |
| Békés | Békés |
| Békéscsaba | Békéscsaba |
| Béla Balázs | Béla Balázs |
| Béla Bartók | Béla Bartók |
| Béla Guttman | Béla Guttmann |
| Béla Király | Béla Király |
| Béla Kun | Béla Kun |
| Béla Tarr | Béla Tarr |
| Béni Mellal | Beni Mellal |
| Bénifontaine | Bénifontaine |
| Bénodet | Bénodet |
| Béthune | Béthune |
| Béziers | Béziers |
