| Breakout (гурт) | Breakout: Video Singles | Breaks |
| Breakthrough Prize | Breakthrough Prize in Life Sciences | Breakthrough Starshot |
| Breakthru | Breast Cancer Show Ever | Breathe In. Breathe Out. |
| Breathlessly | Breda 20/65 Mod. 1935 | Breda 38 |
| Breda Mod. 30 | Breda Mod. 38 | Brederode (1646) |
| BREEAM | Breezin' | Bregovic |
| Bregovic Goran | Breguet | Breguet 14 |
| Breguet 19 | Breguet Br.19 | Breitensteinia |
| Breitensteinia cessator | Breitensteinia hypselurus | Breitensteinia insignis |
| Breitkopf & Härtel | Breitkopf and Hartel | Breitling |
| Breitling (пілотажна група) | Breitling (піотажна група) | Breitscheid |
| Breitscheid (метеорит) | Breitspurbahn | Bremek. |
| Bremer | Bremsstrahlung | Bren |
| Brenan | Brenda | Brenda's Got a Baby |
| Brendan Eich | Brennabor | Brent |
| Brera Academy | Brettanomyces | Brettanomyces bruxellensis |
| Breviceps | Breviceps bagginsi | Breviceps mossambicus |
| Breviceps rosei | Brevicipitidae | Brewster F2A Buffalo |
| Brexit | BRF1 | BRF2 |
| Brfxxccxxmnpcccclllmmnprxvclmnckssqlbb11116 | BRI | BRI3 |
| BRI3BP | Brian Cox (physicist) | Brian Johnson |
| Brian Jones | BRIC | BRICD5 |
| Brick Factory 3 | Brick Game | Brick Squad Monopoly |
| Bricklin | BRICS | Bricscad |
| Bridge (пісня) | Bridge 9 Records | Bridge Over Troubled Water |
| Bridge Over Troubled Water (пісня) | Bridge Protocol Data Unit | Bridgeline Pipeline |
| Bridges to Babylon | Bridgestone | Bridget Fonda |
| Bridging the Gap | Brieflezend Meisje bij het Venster | Bright Lights & Back Alleys |
| Bright Line | Bright side | Bright Star Catalogue |
| Brighter Than a Thousand Suns | Brighton and Rottingdean Seashore Electric Railway | Brights |
| Brights (рух) | Brilliance | Brilliance Auto |
| Brilliance BS4 | Brilliance China Auto | Brilliance M2 |
| Brilliance of the Seas | Brilliance V5 | BRIN |
| Brindabella Airlines | Bring Me the Horizon | Bring Me The Horizon |
| Bring Me to Life | Bring on the Night | Bring the Noise |
| Bring your own device (BYOD) | Bringing It All Back Home | Brink |
| BRINP1 | BRINP2 | BRINP3 |
| Brioni | BRIP1 | Brisbane International |
| Brisbane International 2009, жінки, одиночний розряд | Brisbane International 2011, жінки, одиночний розряд | Brisbane International 2015, жінки, одиночний розряд |
| Brisbane International 2017, жінки, одиночний розряд | Brisbane International 2018, жінки, одиночний розряд | Brisson |
| Bristol | Bristol 400 | Bristol 401 |
| Bristol 403 | Bristol 404 / 405 | Bristol 406 |
| Bristol 407 | Bristol 408 | Bristol 409 |
| Bristol 410 | Bristol 411 | Bristol 412 |
| Bristol Beaufighter | Bristol Blenheim | Bristol Bombay |
| Bristol Fighter | Bristol Type 603 | Brit Award |
| Brit Awards | BRIT Awards | BRIT School |
| Britannia Airways | Britannic Asset Management International Championships | Britannic Asset Management International Championships 2001, одиночний розряд |
| Britannic Asset Management International Championships 2002, одиночний розряд | Britannica | Brithenig |
| British & North American Royal Mail Steam Packet Company | British Academy Games Awards | British Academy of Film and Television Arts |
| British Aerospace ATP | British Airways | British Airways Limited |
| British American Tobacco | British Broadcasting Corporation | British Broadcasting Corporation (BBC) |
| British Council | British Ecological Society | British Film Institute |
| British Independent Film Awards | British Independent Film Awards 2016 | British Leyland |
| British Medical Journal | British Motor Corporation | British Museum |
| British Ornithologists' Union | British Overseas Airways Corporation | British Petroleum |
| British Phonographic Industry | British Rail Class 390 | British Salmson |
| British Standards | British Standards Institution | British Steel (альбом) |
| British Taylorcraft Auster | BritMark Insurance Brokers | BritMark Insurance Brokers, Страховий брокер |
| Britney (альбом) | Britney Jean | Britney Jean (альбом Брітні Спірс) |
| Britney Spears | Britten-Norman Defender | Britton |
| BRIX1 | Brixton Academy | Briza |
| Briza maxima | Briza media | Briza minor |
| BRK1 | BRL | BRL-CAD |
| BRMS1 | BRMS1L | BRO |
| BRO (Borisenko Brothers) | Broadband | Broadband Internet |
| Broadcast | Broadcast Monitoring | Broadcast storm |
| Broadcom | Broadstairs | Broadwell (архітектура) |
| Broadwell (мікроархітектура) | Brocade | Brocade Communications Systems |
| Brocadia | Brocadia anammoxidans | Brochiloricaria |
| Brochiloricaria macrodon | Brochis | Brochis multiradiatus |
| Brock Air Services | Brockhaus | Brockhaus Enzyklopädie |
| Broconius | Brodavidae | Brodavis |
| Brodmann area 36 | Broghammerus | Broilellus |
| Broken | Broken Bells | Broken Blade |
| Broken Frame Tour | Broken Hill | Broken Iris |
| Broken Machine | Broken Strings | Broken, Beat & Scarred |
| Broken/Ꙗ | Bromeliaceae | Bromium |
| Bromopsis calcarea | Bromopsis inermis | Bromoviridae |
| Bromus | Bromus arvensis | Bromus diandrus |
| Bromus hordeaceus | Bromus inermis | Bromus madritensis |
| Bromus rigidus | Bronchocela | Bronchocela cristatella |
| Bronchocela jubata | Bronchocela smaragdina | Brongn. |
| Bronnothyris danaperensis | Brontomerus | Brontomerus mcintoshi |
| Brontornis | Brontornis burmeisteri | Brontornithidae |
| Brontosaurus | Brontotheriidae | Broods |
| Brooke | Brooke Bond | Brookes |
| Brookesia | Brookesia betschi | Brookesia confidens |
| Brookesia desperata | Brookesia micra | Brookesia minima |
| Brookesia nasus | Brookesia tristis | Brookesiinae |
| Brookhaven National Laboratory | Brookings Institution | Brooklyn |
| Brooklyn Bounce | Brooklyn Nets | Brooks (автовиробник) |
| Brooks Brothers | Brooks Steam Motors | Broom |
| Broome | Brosimum utile | Brosix |
| Brother Jack | Brotherhood | Brothers |
| Brothers in Arms | Brothers in Arms (серія ігор) | Brothers in Arms (альбом Dire Straits) |
| Brothers in Arms: Hell's Highway | Brothers in Arms: Road to Hill 30 | Brotomys |
| Brotomys voratus | Brough | Brough Superior |
| Brouillard | Brouss. | Broussonetia papyrifera |
| Brouter | Brovdi Art | Browicz |
