| Bunny style | Bunny Style! | Bunocephalus aleuropsis |
| Bunocephalus amaurus | Bunocephalus chamaizelus | Bunocephalus colombianus |
| Bunocephalus coracoideus | Bunocephalus doriae | Bunocephalus erondinae |
| Bunocephalus knerii | Bunocephalus larai | Bunocephalus verrucosus |
| Bunolagus monticularis | Bunomys | Bunops serricaudata |
| Bunyaviridae | Bunzo Hayata | Buo |
| Buono! | Buono! Live 2011 winter 〜Re;Buono!〜 | Buono! Live 2011 winter ～Re;Buono!～ |
| Buono! Live Tour 2010 〜Rock'n Buono! 3〜 | Buono! Live Tour 2010 ～Rock'n Buono! 3～ | Buono! Live Tour 2011 summer 〜Rock'n Buono! 4〜 |
| Buono! Live Tour 2011 summer ～Rock'n Buono! 4～ | Buono!2 | Buphthalmum |
| Bupleurum | Bupleurum alatum | Bupleurum angustissimum |
| Bupleurum aureum | Bupleurum bicaule | Bupleurum candollei |
| Bupleurum chaishoui | Bupleurum chinense | Bupleurum commelynoideum |
| Bupleurum condensatum | Bupleurum dalhousieanum | Bupleurum densiflorum |
| Bupleurum dielsianum | Bupleurum euphorbioides | Bupleurum exaltatum |
| Bupleurum gracilipes | Bupleurum gracillimum | Bupleurum kaoi |
| Bupleurum komarovianum | Bupleurum krylovianum | Bupleurum kweichowense |
| Bupleurum malconense | Bupleurum marginatum | Bupleurum microcephalum |
| Bupleurum petiolulatum | Bupleurum pusillum | Bupleurum rockii |
| Bupleurum scorzonerifolium | Bupleurum sibiricum | Bupleurum smithii |
| Bupleurum tenue | Bupleurum tianschanicum | Bupleurum triradiatum |
| Bupleurum wenchuanense | Bupleurum yinchowense | Bupleurum yunnanense |
| Bupropion | Burali-Forti悖論 | Burali-Forti悖论 |
| Burara | Burb. | Burberry |
| Burcin | Bureau | Bureau d'enquêtes et d'analyses pour la sécurité de l'aviation civile |
| Bureau d'Enquêtes et d'Analyses pour la Sécurité de l'Aviation Civile | Bureau international des poids et mesures | Bureau of Narcotics and Dangerous Drugs |
| Burevestnik Airport | Burga | Burgau |
| Burgauberg-Neudauberg | Burgães | Burger King |
| Burgerkill | Burgers-Fisher 方程 | Burgers-KdV方程 |
| Burgess model | Burgkirchen | Burgmüller |
| Burgmuller | Burgo (Arouca) | Burgschleinitz-Kühnring |
| Burhan Ghalioun | Burhinidae | Buri |
| Buriki | Buritama | Buriti Alegre |
| Buriti Bravo | Buriti de Goiás | Buriti do Tocantins |
| Buriti dos Lopes | Buriti dos Montes | Buriticupu |
| Buritinópolis | Buritirama | Buritirana |
| Buritis | Buritizal | Buritizeiro |
| Burj Dubai | Burj khalīfah | Burj Khalifa |
| Burke, South Dakota | Burkholderia | Burkholderia mallei |
| Burkholderia pseudomallei | Burkholderiales | Burkill integral |
| Burlington, Colorado | Burlington, North Dakota | Burlington, Wyoming |
| Burm.f. | Burmannia championii | Burmannia coelestis |
| Burmannia cryptopetala | Burmannia disticha | Burmannia itoana |
| Burmannia liukiuensis | Burmannia nepalensis | Burmannia oblonga |
| Burmannia wallichii | Burmanniaceae | BURN -不滅的FACE- |
| BURN -フメツノフェイス- | Burn After Reading | Burn notice |
| BURN-E | Burnaby | BURNフメツノフェイス |
| Burned | Burnetia | Burnetiidae |
| Burnettown, South Carolina | Burney Treaty | Burning Production |
| BURNING UP | Burnley | Burns, Wyoming |
| Burnside's lemma | Burnside引理 | Burnt Money |
| Burqa | Burqa Band | Burramys |
| Burretiodendron | Burretiodendron esquirolii | Burretiodendron longistipitatum |
| Burrito | Burrows-Wheeler transform | Burrows-Wheeler变换 |
| Burrows-Wheeler轉換 | Bursa bufonia | Bursa cruentata |
| Bursa granularis | Bursa lamarckii | Bursa Malaysia |
| Bursa rhodostoma | Bursa rosa | Bursa tuberosissima |
| Bursaphelenchus | Bursaphelenchus cocophilus | Bursaphelenchus xylophilus |
| Burseraceae | Burstcoin | Burt Bacharach |
| Burt James Totaro | Burt Lancaster | Burt Reynolds |
| Burt's Bees | Burundi | Burwood, New South Wales |
| Burzum | Bus | BUS GAMER |
| Bus Network | Bus Topology | Buscopan |
| Buses in Hong Kong | Bush Hopper | Bushehr |
| Bushido | Bushimo | Bushiroad |
| BUSHIROAD | Bushnell, Florida | Bushnell, South Dakota |
| Bushra al-Assad | Bushwick | Business Daily |
| Business economics | Business insider | Business Insider |
| Business Jump | Business law | Business Week |
| Business Wire | Businessweek | BusinessWeek |
| Busker Busker | Busking | Busoni |
| Buspirone | Busra Yalçinkaya | Bussy-Saint-Martin |
| Busta Rhymes | Busta新宿 | Busted！明星來解謎 |
| Bustelo (Amarante) | Bustelo (Penafiel) | BUSTER KEEL |
| BUSTER KEEL! | Buster Posey | Bustle |
| Bustos | Busy spin | BusyBox |
| Busybox | Busycon contrarium | Busycon perversum |
| BusyMatch | BUT/愛的證明 | BUT/愛証 |
| Butane | Butastur indicus | Butastur liventer |
| Butastur teesa | Butch | Butch Cassidy and the Sundance Kid |
| Butea braamiana | Butea monosperma | Buteo |
| Buteo buteo | Buteo hemilasius | Buteo jamaicensis |
| Buteo lagopus | Buteo ridgwayi | Buteo rufinus |
| Buteo swainsoni | Buthidae | Buthotrephis |
| Butia capitata | Butiá | Butis butis |
| Butis gymnopomus | Butis koilomatodon | Butis melanostigma |
| Butler Act | Butler, Alabama | Butler, South Dakota |
| Butlers～千年百年物語～ | Butomaceae | Butomopsis |
| Butomopsis latifolia | Butorides striata | Butte, North Dakota |
| Butter-Fly | Butterfield's | Butterfly |
| Butterfly (和田光司单曲) | Butterfly (倖田來未單曲) | Butterfly (木村KAELA單曲) |
| Butterfly Kisses (梁詠琪專輯) | Butterfly Kisses (流行音樂專輯) | Buttons and Bows |
| Butyric acid | Buwaneka Goonethilleka | Buwenaka Goonathileka |
| Buxaceae | Buxales | Buxton, North Dakota |
| Buxus | Buxus austro-yunnanensis | Buxus bodinieri |
| Buxus cephalantha | Buxus hainanensis | Buxus harlandii |
| Buxus hebecarpa | Buxus henryi | Buxus ichangensis |
| Buxus latistyla | Buxus linearifolia | Buxus liukiuensis |
| Buxus megistophylla | Buxus mollicula | Buxus myrica |
| Buxus pubiramea | Buxus rugulosa | Buxus sinica |
| Buxus sinica var. parvifolia | Buxus stenophylla | Buzplay |
