Terms from Bertrand Du Guesclin to Bundesnachrichtendienst (BND)
- Bertrand Du Guesclin Biography (c.1320–80)
- Bertrand Hollis Snell Biography (1870–1958)
- Bertrando Del Poggetto Biography (1280–1352) (Fr Bertrand du Pouget)
- Bertus Aafjes Biography (1914–93)
- Berwick-upon-Tweed
- Beryl
- Beryl Reid Biography (1920–96)
- Beryllium
- Bes
- Besançon (ancient Vesontio or Besontium)
- Beskids Or Beskydy
- Beslan
- Bess Furman Biography (1894–1969)
- Bess Truman Biography (1885–1982) (popular name of Elizabeth Virginia Trumannée Wallace)
- Bessarabien
- Bessemer Process
- Bessie (Onahotema) Potter Vonnoh Biography (1872–1955)
- Bessie B(oehm) Moore Biography (1902–95)
- Bessie Head Biography (1937–86)
- Bessie Locke Biography (1865–1952)
- Bessie Smith Biography (c.1895–1937) (nickname Empress of the Blues)
- Bestiary
- Beta Decay
- Beta Particle
- Beta-blockers
- Betacam
- Betamax
- Betatron
- Betel-nut
- Betelgeuse
- Bethel
- Bethlehem (Arabic Beit Lahm)
- Bethlehem (USA)
- Betje Wolff Biography (1738–1804) (popular name of Elizabeth Wolff-Bekker)
- Betony
- Betsy (Cromer) Byars Biography (1928– )
- Betsy Jolas Biography (1926– ) (originally Elizabeth Illouz)
- Betsy Ross Biography (1752–1836) (née Elizabeth Griscom)
- Bette Davis Biography (1908–89) (popular name of Ruth Elizabeth Davis)
- Bette Midler Biography (1945– )
- Better Business Bureau
- Bettina Von Arnim Biography (1785–1859) (originally Anna Elisabeth (Bettine) von)
- Bettino Craxi Biography (1934–2000)
- Betty (Naomi) Friedan Biography (1921–2006) (née Goldstein)
- Betty Carter Biography (1930–98) (originally Lillie Mae Jones)
- Betty Churcher Biography (1931– ) (popular name of Elizabeth Ann Churcher)
- Betty Comden Biography (1917–2006) (originally Elizabeth Cohen)
- Betty Cuthbert Biography (1938– ) (known as The Golden Girl)
- Betty Ford Biography (1918– ) (popular name of Elizabeth Bloomer Fordnée Warren)
- Betty Grable Biography (1916–73) (originally Ruth Elizabeth Grable)
- Betty J(ane) Meggers Biography (1921– )
- Betty Jackson Biography (1949– )
- Betty Parsons Biography (1900–82) (popularly known as Pierson)
- Betty Talbot Blackwell Biography (?1905–85)
- Betty Zane Biography (?1766–?1831) (popular name of Elizabeth Zane)
- Bevatron
- Beveridge Webster Biography (1908– )
- Beverley
- Beverley Allitt Biography (1969– )
- Beverley Sills Biography (1929– ) (stage name of Belle Miriam Silverman)
- Beverly Cleary Biography (1916– ) (née Bunn)
- Beverly Hills
- Beverly Pepper Biography (1924– ) (née Stoll)
- Bewdley
- Bezige Bij, De (Eng The Busy Bee)
- Bhadgaon
- Bhagavadgita Or Bhagavad Gita ((Sanskrit ‘The Song of the Lord’))
- Bhakti
- Bhangra
- Bharata Natyam
- Bharatiya Janata Paksh (BJP)
- Bhartrihari Biography (7th-c)
- Bhasa Biography (3rd-c)
- Bhil
- Bhimrao Ramji Ambedkar Biography (1893–1956)
- Bhopal
- Bhumibol Adulyadej Biography (1927– )
- Bhutan
- Bhutia
- Biafra
- Biagio Marin Biography (1891–1985)
- Bianca Capello Biography (1548–87)
- Bianchi E Neri (Eng the Black and the White)
- Biarritz
- Bias Biography (6th-c BC)
- Biathlon
- Białystok
- Bibi Andersson Biography (1935– ) (popular name of Birgitta Andersson)
- Bible
- Bible Society
- Bibliography (list)
- Bibliography (study)
- Biblioteca De Autores Españoles (BAE)
- Biblioteca Nacional
- Bibliothèque Nationale
- Bicameral System
- Bicarbonate
- Bicker
- Bicycle
- Biddersoproer
- Biedermeier
- Biedermeierstil
- Biennale
- Biennial
- Big Ben
- Big Bill Broonzy Biography (1893–1958) (popular name of William Lee Conley Broonzy)
- Big Bill Thompson Biography (1869–1944) (popular name of William (Hale) Thompson)
- Big Ed Walsh Biography (1881–1959) (popular name of Edward Augustine Walsh)
- Big Foot Biography (?1825–90) (originally Si Tankaalso known as Spotted Elk)
- Big Joe Turner Biography (1911–85) (popular name of Joseph Turner)
- Bigamy
- Bigfoot Or Sasquatch
- Biggleswade
- Bighorn
- Bihar Or Behar
- Bikaner
- Bikini
- Bilbao
- Bilberry
- Bilderdijk, Willem Biography (1756–1831)
- Bildungsroman ((Ger ‘education novel’))
- Bile
- Biliary System
- Bilingualism
- Bill Alexander Biography (1948– ) (popular name of William Alexander)
- Bill Beutel Biography (1930–2006) (popular name of William Charles BeutelJr)
- Bill Blass Biography (1922–2002) (popular name of William Ralph Blass)
- Bill Bradley Biography (1943– ) (popular name of William Warren Bradley)
- Bill Brandt Biography (1904–83) (popular name of William Brandt)
- Bill Bright Biography (1921–2003) (popular name of William Rohl Bright)
- Bill Bryden Biography (1942– ) (popular name of William Bryden)
- Bill Bryson Biography (1951– )
- Bill Clinton Biography (1946– ) (popular name of William Jefferson Clintonborn William Jefferson Blythe)
- Bill Cosby Biography (1937– ) (popular name of William Henry Cosby)
- Bill Dickey Biography (1907–93) (popular name of William Malcomb Dickey)
- Bill Evans Biography (1929–80) (popular name of William Evans)
- Bill Forsyth Biography (1947– ) (popular name of William David Forsyth)
- Bill Gates Biography (1955– ) (popular name of William Henry Gates)
- Bill Giles Biography (1939– ) (popular name of William George Giles)
- Bill Graham Biography (1931–93) (originally Wolfgang Grajonca)
- Bill Haley Biography (1925–1981) (popular name of William John Haley)
- Bill Hartack Biography (1932– ) (popular name of William John HartackJr)
- Bill Hayden Biography (1933– ) (popular name of William George Hayden)
- Bill Irwin Biography (1950– ) (popular name of William Irwin)
- Bill Jeffers Biography (1876–1953) (popular name of William Martin Jeffers)
- Bill Klem Biography (1874–1951) (popular name of William Joseph Klem)
- Bill Larned Biography (1872–1926) (popular name of William Augustus Larned)
- Bill Lawry Biography (1936– ) (popular name of William Morris Lawry)
- Bill McKechnie Biography (1886–1965) (popular name of William Boyd McKechnie)
- Bill Monroe Biography (1911– ) (popular name of William Smith Monroe)
- Bill Murray Biography (1950– ) (popular name of William James Murray)
- Bill Nicholson Biography (1919–2004) (popular name of William Nicholson)
- Bill Of Exchange Or Commercial Bill
- Bill Of Rights
- Bill Rodgers Biography (1947– ) (popular name of William Henry Rodgers)
- Bill Rodgers Biography (1928– ) (popular name of Lord William Thomas Rodgers of Quarry Bank)
- Bill Russell Biography (1934– ) (popular nameof William Felton Russell)
- Bill Shankly Biography (1913–81) (popular name of William Shankly)
- Bill T Jones Biography (1952– )
- Bill Tidy Biography (1933– ) (popular name of William Edward Tidy)
- Bill Tilden Biography (1893–1953) (popular name of William Tatem Tilden)
- Bill Traylor Biography (1854–1947)
- Bill Veeck Biography (1914–86) (popular name of William Louis Veeck Jr)
- Bill Walsh Biography (1931– ) (popular name of William Ernest Walsh)
- Bill Walton Biography (1952– ) (popular name of William Theodor Walton)
- Bill Watterson Biography (1958– ) (popular name of William Watterson)
- Bill White Biography (1934– ) (popular name of William DeKova White)
- Bill ‘Bojangles’ Robinson Biography (1878–1949) (originally Luther Robinsonnickname the King of Tapology)
- Bill(y Don) Moyers Biography (1934– )
- Bill, Parliamentary
- Bille August Biography (1948– )
- Billfish
- Billiards
- Billie (Paul) Piper Biography (1982– )
- Billie Holiday Biography (1915–59) (originally Eleanora Fagannickname Lady Day)
- Billie Jean King Biography (1943– ) (née Moffat)
- Billie Whitelaw Biography (1932– )
- Billingsgate Market
- Billion
- Billy Baldwin Biography (1903–84)
- Billy Bitzer Biography (1872–1944) (popular name of Johann Gottlob Wilhelm Bitzer)
- Billy Bragg Biography (1957– ) (popular name of Steven William Bragg)
- Billy Butlin Biography (1899–1980) (popular name of Sir William (Edmund) Butlin)
- Billy Connolly Biography (1942– )
- Billy Crystal Biography (1947– )
- Billy Dixon Biography (1850–1913) (popular name of William Dixon)
- Billy Eckstine Biography (1914–93) (popular name of William Clarence Eckstein)
- Billy Graham Biography (1918– ) (popular name of William Franklin GrahamJr)
- Billy Joel Biography (1949– )
- Billy Meredith Biography (1874–1958) (popular name of William Meredith)
- Billy Mitchell Biography (1879–1936) (popular name of William Mitchell)
- Billy Rose Biography (1899–1966) (professional name of William Samuel Rosenberg)
- Billy Strayhorn Biography (1915–67) (popular name of William Strayhorn)
- Billy Sunday Biography (1862–1935) (popular name of William Ashley Sunday)
- Billy Wilder Biography (1906–2002) (originally Samuel Wilder)
- Billy Wright Biography (1924–94) (popular name of William Ambrose Wright)
- Biloxi
- Bimetallic Strip
- Bimetallism
- Binary Code
- Binary Coded Decimal (BCD)
- Binary Number
- Binary Star
- Binary Weapon
- Bindweed
- Bing Crosby Biography (1904–77) (popular name of Harry Lillis Crosby)
- Bingo
- Binnenlandse Strijdkrachten (NBS), Nederlandse
- Binoculars
- Binomial Nomenclature
- Binturong
- Binyamin Netanyahu Biography (1949– ) (nicknamed in Israel Bibi)
- Bioassay
- Biochemistry
- Bioclimatology
- Biodegradable Substance
- Biodiversity
- Bioengineering
- Biofeedback
- Biogas
- Biogenesis
- Biogenetic Law
- Biogeography
- Biography
- Bioko (formerly Fernando Po or Póo (to 1973)Macías Nguema Bijogo (to 1979))
- Biolinguistics
- Biological Control
- Biological Psychiatry
- Biological Rhythm Or Biorhythm
- Biological Sciences
- Biological Shield
- Biological Value
- Biological Warfare
- Biology
- Bioluminescence
- Biomass
- Biome
- Biomechanics
- Biomorphic Art
- Bionics
- Bionomics
- Biophysics
- Biopsy
- Biorhythms (alternative Medicine)
- Biosphere
- Biotechnology
- Biotin
- Biot–Savart Law
- Bir Bikram Shah Dev Birendra Biography (1945–2001)
- Birch
- Bird
- Bird Of Paradise
- Bird Of Paradise Flower
- Bird Of Prey
- Bird's-foot Trefoil
- Bird's-nest Fern
- Birdie Hines Biography (1868–1968) (popular name of John Leonard)
- Birdwing Butterfly
- Birefringence
- Bireme
- Birgit Ragnhild Cullberg Biography (1908–99)
- Birkenhead
- Birmingham (UK)
- Birmingham (USA)
- Birmingham Repertory Theatre
- Birmingham Royal Ballet
- Birmingham Six
- Birthmark
- Biscay, Bay Of (Span Golfe de VizcayaFr Golfe de Gascogne)
- Biscuit
- Bishkek (formerly Pishpek (to 1926)Frunze (to 1991))
- Bishop
- Bishop
- Bishops' Wars
- Bismarck (USA)
- Bismarck Archipelago
- Bismarck Sea
- Bismuth
- Bison
- Bissau
- Bistort
- Bisynchronous Transmission
- Bit
- Bithynia
- Biting Midge
- BITNET
- Bitola Or Bitolj (Turkish Monastir)
- Bitonality
- Bittern
- Bitumen (art)
- Bitumen (chemistry)
- Bivalve
- Biwa, Lake (Jap Biwa-koalso Lake Omi)
- Bizerte Or Bizerta (Lat Hippo Diarrhytus)
- Bizone
- Bjarni Vigfusson Thorarensen Biography (1786–1841)
- Björn (Rune) Borg Biography (1956– )
- Björn Engholm Biography (1939– )
- Bjørnstjerne (Martinius) Bjørnson Biography (1832–1910)
- Black And Tans
- Black Bear
- Black Beetle
- Black Box
- Black Bryony
- Black Comedy
- Black Consciousness
- Black Consciousness Movement (South Africa)
- Black Country
- Black Dance
- Black Death
- Black Economy
- Black Elk Biography (1863–1950) (popular name of Ekhaka Sapa)
- Black Fly
- Black Forest (Ger Schwarzwald)
- Black Friday
- Black Grouse
- Black Hand
- Black Hawk Biography (1767–1838)
- Black Hawk War
- Black Hole
- Black Hole Of Calcutta
- Black Kettle Biography (?1803–68) (originally Moketavato)
- Black Letter Writing
- Black Market
- Black Mass
- Black Mountain College
- Black Mountain Poetry
- Black Muslims
- Black Panthers
- Black Power
- Black Rod
- Black Sea (ancient Pontus Euxinus (Euxine Sea)Bulgarian Cherno MoreRomanian Marea NeagraRussian Chernoye MoreTurkish Karadeniz)
- Black Snake
- Black Swan
- Black Thursday
- Black Watch
- Black Widow
- Black Zionism
- Black-eyed Susan (annual)
- Black-eyed Susan (USA)
- Blackberry
- Blackbird
- Blackbirding
- Blackbody
- Blackbody Radiation
- Blackbuck
- Blackcap
- Blackcurrant
- Blackfly
- Blackfoot
- Blackjack
- Blackleg
- Blackmail
- Blackpool
- Blackshirts (It camicie nere)
- Blackshirts
- Blackthorn
- Blackwater Fever
- Bladder
- Bladder Campion
- Bladderwort
- Bladud
- Blaenau Gwent
- Blaise Cendrars Biography (1887–1961) (pseudonym of Frédéric Louis Sauser)
- Blaise Pascal Biography (1623–62)
- Blake Edwards Biography (1922– ) (originally William Blake McEdwards)
- Blanca Fernández Ochoa Biography (1963– )
- Blank Verse
- Blantyre
- Blarney
- Blas Antonio Nasarre Y Férriz Biography (1689–1751)
- Blasphemy
- Blast Furnace
- Blastula
- Blauwe Schuit, De (Eng blue ship)
- Blazar
- Blazonry
- Bleaching
- Bleaching Powder
- Bleak
- Bleeding Heart
- Blenheim Palace
- Blenheim, Battle Of
- Blenny
- Blessed Kateri Tekakwitha Biography (1656–80)
- Blida
- Blight
- Blindness
- Blissymbolics
- Blister Beetle
- Blister Blight
- Blitzkrieg ((Ger ‘lightning war’))
- Bloch
- Blockparteien
- Bloemfontein
- Blondel Or Blondel De Nesle Biography (12th-c)
- Blondie
- Blood
- Blood Bank
- Blood Fluke
- Blood Group Systems
- Blood Pressure
- Blood Products
- Blood Sports
- Blood Test
- Blood Transfusion
- Blood Vessels
- Blood, Council Of
- Blood-brain Barrier
- Bloodhound
- Bloodstone
- Bloodworm
- Bloody Assizes
- Blood–testis Barrier
- Bloomfield
- Bloomsbury Group
- Blossom Dearie Biography (1926– )
- Blowfly
- Blu Greenberg Biography (1936– )
- Blue
- Blue Book
- Blue Fish
- Blue Grass
- Blue Moon (effect)
- Blue Moon (event)
- Blue Mountain
- Blue Mountains
- Blue Nile (Ethiopia Abay WenzSudan Bahr El Azraq)
- Blue Riband
- Blue Ridge Mountains
- Blue Shark
- Blue Whale
- Blue-backing Shot
- Blue-green Bacteria
- Bluebeard
- Bluebell
- Blueberry
- Bluebird
- Bluebottle (entomology)
- Bluegrass
- Blues
- Blueshift
- Bluestockings
- Bluetit
- Blumenau
- Blunderbuss
- BMD
- Bo Diddley Biography (1928– ) (originally Ellas McDaniel)
- Bo Juyi Biography (772–846) (also spelled Po Chü-i)
- Boa
- Boardman (Mike) Robinson Biography (1876–1952)
- Boat People
- Boat Race
- Boatbill
- Bob Bartlett Biography (1904–68) (popular name of Edward Lewis Bartlett)
- Bob Beamon Biography (1946– ) (popular name of Robert Beamon)
- Bob Charles Biography (1936– ) (popular name of Robert Charles)
- Bob Clemente Biography (1934–1972) (popular name of Roberto (Walker) Clemente)
- Bob Cousy Biography (1928– ) (popular name of Robert Joseph Cousy)
- Bob Crosby Biography (1913–93) (popular name of George Robert Crosby)
- Bob Crowley Biography (1954– ) (popular name of Robert Crowley)
- Bob Den Uyl Biography (1930–92)
- Bob Dole Biography (1923– ) (popular name of Robert Joseph Dole)
- Bob Dylan Biography (1941– ) (pseudonym of Robert Zimmerman)
- Bob Feller Biography (1918– ) (popular name of Robert William Andrew Fellernickname Rapid Robert)
- Bob Fitzsimmons Biography (1863–1917) (popular name of Robert Prometheus Fitzsimmons)
- Bob Fosse Biography (1927–87) (popular name of Robert Louis Fosse)
- Bob Geldof Biography (1954– ) (popular name of Robert Frederick Xenon Geldof)
- Bob Godfrey Biography (1921– ) (popular name of Robert Godfrey)
- Bob Hawke Biography (1929– ) (popular name of Robert (James Lee) Hawke)
- Bob Hope Biography (1903–2003) (originally Leslie Townes Hope)
- Bob Hoskins Biography (1942– ) (popular name of Robert William Hoskins)
- Bob Jones Biography (1883–1968) (popular name of Robert Reynolds Jones)
- Bob Kane Biography (1916–98) (popular name of Robert Kane)
- Bob Keeshan Biography (1927–2004) (popular name of Robert James Keeshan)
- Bob Kurland Biography (1924– ) (popular name of Robert Kurland)
- Bob Marley Biography (1945–81) (popular name of Robert Nesta Marley)
- Bob Mathias Biography (1930–2006) (popular name of Robert Bruce Mathias)
- Bob Newhart Biography (1929– ) (popular name of George Robert Newhart)
- Bob Neyland Biography (1892–1962) (popular name of Robert Reese NeylandJr)
- Bob Paisley Biography (1919–96) (popular name of Robert Paisley)
- Bob Pettit Biography (1932– ) (popular name of Robert E Lee Pettit)
- Bob Richards Biography (1926– ) (popular name of Robert Eugene Richards)
- Bob Ross Biography (1943– ) (popular name of Robert Ross)
- Bob Swaim Biography (1943– )
- Bob Thompson Biography (1937–66)
- Bob Wills Biography (1905–75) (popular name of James Robert Wills)
- Bob Woodward Biography (1943– ) (popular name of Robert Upshur Woodward)
- Bob Zuppke Biography (1879–1957) (popular name of Robert Carl Zuppke)
- Bobby Charlton Biography (1937– ) (popular name of Sir Robert Charlton)
- Bobby Clark Biography (1888–1960)
- Bobby Darin Biography (1936–73) (originally Walden Robert Cassatto)
- Bobby Fischer Biography (1943– ) (popular name of Robert (James) Fischer)
- Bobby Jones Biography (1902–71) (popular name of Robert (Tyre) Jones Jr)
- Bobby Knight Biography (1940– ) (popular name of Robert Knight)
- Bobby Locke Biography (1917–87) (popular name of Arthur D'Arcy Locke)
- Bobby Moore Biography (1941–93) (popular name of Robert Frederick Chelsea Moore)
- Bobby Orr Biography (1948– ) (popular name of Robert Gordon Orr)
- Bobby Riggs Biography (1918–95) (popular name of Robert Larimore Riggs)
- Bobby Sands Biography (1954–81) (popular name of Robert Sands)
- Bobby Seale Biography (1936– )
- Bobby Short Biography (1924–2005) (popular name of Robert Waltrip Short)
- Bobby Thomson Biography (1923– ) (popular name of Robert Brown Thompson)
- Bobcat
- Bobolink
- Bobsledding
- Bobwhite
- Bochum
- Bode's Law Or Titius–Bode Law
- Bodegón
- Bodenreform
- Bodhidharma Biography (6th-c)
- Bodhisattva ((Sanskrit‘enlightened existence’))
- Bodily Harm
- Bodleian Library
- Bodnant Garden
- Body Art
- Boekenweek (Eng Week of the Book)
- Boeotia
- Boer Wars
- Boerenpartij (BP)
- Bog Asphodel
- Bog Burials
- Bog Myrtle
- Bognor Regis
- Bogotá (official name Santa Fe de Bogotá)
- Bohemia (Czech ČechyGer Böhmen)
- Bohemian Forest (Ger BöhmerwaldCzech Český Les)
- Bohemond I Biography (c.1056–1111)
- Bohr Magnetron
- Bohuslav Martinů Biography (1890–1959)
- Boies Penrose Biography (1860–1921)
- Boil
- Boiling Point
- Bois De Boulogne
- Boise
- Bolero
- Bolete
- Bolide
- Bolivia
- Boll Weevil
- Bologna
- Bolsheviks ((Russ ‘majority-ites’))
- Bolshoi Ballet ((Russian ‘Great Ballet’))
- Boltzmann Constant
- Bolzano (Ger Bozen)
- Bolívar, Pico
- Bomb
- Bombardier Beetle
- Bombay Duck
- Bona Of Savoia Biography (1449–1503)
- Bonagiunta Orbicciani Da Lucca Biography (c.1220–90)
- Bonaire
- Bonamy Dobrée Biography (1891–1974)
- Bonaventura Carles Aribau Biography (1798–1862)
- Bonaventure Des Périers Biography (c.1510–44)
- Bond
- Bondi
- Bone
- Bone Marrow
- Bone-black
- Bongo
- Bongos
- Boniface VIII Biography (c.1235–1303) (originally Benedetto Caetani)
- Bonifacio Di Toscana Biography (c.985–1052)
- Bonin Islands (Jap Ogasawara-shoto)
- Bonito
- Bonn
- Bonnie (Lynn) Raitt Biography (1949– )
- Bonnie And Clyde
- Bono Giamboni Biography (c.1235–c.95)
- Bonsai
- Bontebok
- Bonvesin De La Riva Biography (c.1243–1315)
- Bony Fish
- Booby
- Book
- Book Fairs
- Book Of Changes (Chin Yijing or I-ching)
- Book Of Common Prayer
- Book Of Hours
- Book Of Songs (Chin Shijing)
- Book Of The Dead
- Bookbinding
- Booker Prize (also called Booker McConnell Prize and (from 2002) the Man Booker Prize)
- Booker T(aliaferro) Washington Biography (1856–1915)
- Booklouse
- Bookworm
- Boolean Algebra
- Boomerang
- Boomslang
- Bootlegging
- Bophuthatswana (locally Bop)
- Borage
- Boranes
- Borax
- Bordeaux (Lat Burdigala)
- Borden Parker Bowne Biography (1847–1910)
- Border Terrier
- Bore
- Boreal Forests
- Borghese
- Borgia
- Boric Acid
- Boris (Fyodorovich) Godunov Biography (c.1552–1605)
- Boris (Leonidovich) Pasternak Biography (1890–1960)
- Boris (Nikolayevich) Yeltsin Biography (1931– )
- Boris Aronson Biography (1900–80)
- Boris Artzybashev Biography (1899–1965)
- Boris Becker Biography (1967– )
- Boris Christoff Biography (1914–93)
- Boris Georgyevich Rotov Nikodim Biography (1928–78)
- Boris Goldovsky Biography (1908–2001)
- Boris Karloff Biography (1887–1969) (originally William Henry Pratt)
- Boris Pilnyak Biography (1894–?1937) (pseudonym Boris Andreyevich Vogau)
- Boris Vasilyevich Spassky Biography (1937– )
- Boris Vian Biography (1920–59)
- Borneo
- Bornholm
- Born–Haber Cycle
- Borobudur
- Borohydride
- Boron
- Borough
- Borzoi
- Bose–Einstein Condensate
- Bose–Einstein Statistics
- Bosnia And Herzegovina
- Boson
- Bosporus Bridge
- Bosporus Or Bosphorus (Turkish Karadeniz Boğazi)
- Bosques Petrificados (Eng Petrified Forests)
- Bosra
- Boss Crump Biography (1874–1954) (popular name of Edward Hull Crump)
- Boston (USA)
- Boston Celtics
- Boston Massacre
- Boston Public Library
- Boston Tea Party
- Boston Terrier
- Bosworth Field, Battle Of
- Bot Fly
- Botanical Garden
- Botany
- Botany Bay
- Bothnia, Gulf Of
- Botho Strauß Biography (1944– )
- Botrange
- Botswana
- Bottega ((Ital ‘shop’))
- Bottlebrush
- Bottlenose
- Bottom
- Bottom-up/top-down Processing
- Bottrop
- Botulism
- Boudewijn Büch Biography (1948–2002)
- Boudicca Biography (1st-c) (also known as Boadicea)
- Bougainville
- Bougainvillea
- Boulder
- Boules
- Boulogne
- Boulogne-Billancourt
- Bourbon
- Bourbons
- Bourgeoisie
- Bourges
- Bourget Or Lac Du Bourget
- Bournemouth
- Bourse
- Bourse, Antwerp
- Boustrophedon
- Boutros Boutros-Ghali Biography (1922– )
- Bouzouki
- Bovidae
- Bovine Mastitis
- Bovine Milk Fever
- Bovine Spongiform Encephalopathy (BSE)
- Bow (music)
- Bow Porcelain
- Bow Wave
- Bowerbird
- Bowfin
- Bowie K Kuhn Biography (1926– )
- Bowling
- Bowls
- Bowman (Jr) Gray Biography (1907–69)
- Box
- Box Camera
- Box Elder
- Box Set
- Box Turtle
- Boxer
- Boxer Rising
- Boxing
- Boxing Day
- Boy George Biography (1961– ) (popular name of George O'Dowd)
- Boyana Church
- Boyars
- Boycott
- Boyne, Battle Of The
- Boyne, River
- Bozon, Phillipe Biography (1966– )
- Boötes ((Lat ‘herdsman’))
- Brabant
- Braccio Da Montone Biography (1368–1424) (originally Andrea Fortebracci)
- Bracken
- Bract
- Brad Pitt Biography (1963– )
- Bradford
- Bradley (Walker) Tomlin Biography (1899–1953)
- Bradley Allen Fiske Biography (1854–1942)
- Bradley Dewey Biography (1887–1974)
- Brady Bill
- Braemar
- Braga (ancient Bracara Augusta)
- Braganza (Port Bragança [bragansa]ancient Juliobriga)
- Brahma
- Brahman
- Brahmanas
- Brahmanism
- Brahmaputra, River (Chin Yalu ZangbuBangla Jamuna)
- Brahmins
- Brahmo Samaj
- Braille
- Brain
- Brain Death
- Brain Stem
- Brake
- Brake Horsepower (bhp)
- Bram Fischer Biography (1908–75) (popular name of Abram Louis Fischer)
- Bram Peper Biography (1940– ) (popular name of Abraham Peper)
- Bram Stoker Biography (1847–1912) (popular name of Abraham Stoker)
- Brambling
- Bran
- Branchiopoda
- Brand Whitlock Biography (1869–1934)
- Brandenburg Gate
- Brandenburg Or Brandenburg An Der Havel
- Brandon Thomas Biography (1849–1914)
- Brandy
- Brandywine, Battle Of The
- Brass
- Brass Instrument
- Brassaï Biography (1899–1984) (professional name of Gyula Halasz)
- Brasses
- Brassica
- Brasília
- Bratislava (Ger PressburgHung Pozsonyancient Posonium)
- Bratsk Dam
- Braulio Foz Biography (1791–1865)
- Braunschweig
- Braxton Bragg Biography (1817–76)
- Brazil
- Brazil Nut
- Brazilla Carroll Reece Biography (1889–1961)
- Brazing
- Brazos River
- Brazzaville
- Braşov (formerly Kronstadt (to 1918)Stalin (1950–60))
- Bread
- Bread Mould
- Breadfruit
- Breakwater
- Bream
- Breast
- Breast Cancer
- Breast Feeding
- Breast Milk
- Breathalyzer / Breathalyser
- Breccia
- Breckland, The
- Brecon Beacons
- Breda
- Brederode, House Of
- Breeches Bible
- Brehon Burke Somervell Biography (1892–1955)
- Brehon Laws
- Bremen
- Bremen Cathedral
- Bremerhaven
- Bremsstrahlung ((Ger ‘braking radiation’))
- Bren Gun
- Brenda Atkinson Milner Biography (1918– ) (née Langford)
- Brenda Blethyn Biography (1946– )
- Brendan (Francis) Behan Biography (1923–64)
- Brenner Pass (Ger Brenner SattelItal Passo del Brennero)
- Brent Goose
- Brescia
- Brest (Belarus) (formerly Brest-LitovskPol Brześć nad Bugiem)
- Brest (France)
- Brest-Litovsk, Treaty Of
- Bret Harte Biography (1836–1902) (pseudonym of Francis Brett Hart)
- Brethren (in Christ)
- Breton
- Brett (Lorenzo) Favre Biography (1969– )
- Brett Whiteley Biography (1939–92)
- Bretton Woods Conference
- Breviary
- Brewing
- Breyten Breytenbach Biography (1939– )
- Brezhnev Doctrine
- Brian Biography (c.926–1014) (known as Brian Boroimhe or Boru (‘Brian of the Tribute’))
- Brian (Alexander) Johnston Biography (1912–94) (nickname Johnners)
- Brian (Charles) Lara Biography (1969– )
- Brian (David) Josephson Biography (1940– )
- Brian (Denis) Cox Biography (1946– )
- Brian (Eric) Phelps Biography (1944– )
- Brian (Joe Lobley) Berry Biography (1934– )
- Brian (John) Ford Biography (1939– )
- Brian (Wilson) Aldiss Biography (1925– )
- Brian Bevan Biography (1924–91) (nickname the Galloping Ghost)
- Brian Clough Biography (1935–2004)
- Brian De Palma Biography (1940– )
- Brian Friel Biography (1929– )
- Brian Merriman Biography (1757–1805)
- Brian Moore Biography (1921–99)
- Brian Rix Biography (1924– ) (popular name of Brian Norman Roger RixLord Rix of Whitehall and of Hornsea)
- Brian W Kernighan Biography (1942– )
- Briançon
- Briar
- Brice Marden Biography (1938– )
- Brick Pomeroy Biography (1833–96) (popular name of Marcus Mills Pomeroy)
- Bricks
- Bridewealth
- Bridge (engineering)
- Bridge (recreation)
- Bridge Of Sighs
- Bridgend
- Bridget Riley Biography (1931– )
- Bridgetown
- Bridgewater Canal
- Bridgnorth
- Bridgwater
- Brig
- Brigandage
- Brigantine
- Brigham Young Biography (1801–77)
- Brighton
- Brigid (Antonia Susan) Brophy Biography (1929–95)
- Brigit Or Brighid
- Brigitte Bardot Biography (1934– ) (originally Camille Javal)
- Brigus
- Brihadisvara Temple
- Brill
- Brimstone (entomology)
- Brindisi
- Brine Shrimp
- Brinell Hardness Test
- Briquette
- Brisbane
- Brisling
- Bristletail
- Bristleworm
- Bristol (Anglo-Saxon Bricgstow)
- Bristol Channel
- Brit Awards
- Britain, Battle Of
- Britain, Roman
- Britannia Metal
- Britannicus Biography (41–55 AD) (in full Claudius Tiberius Britannicus Caesar)
- Brites De Almeida Biography (fl.1385– )
- British Academy Of Film And Television Arts (BAFTA)
- British Antarctic Survey
- British Antarctic Territory
- British Association For The Advancement Of Science
- British Athletic Federation (BAF)
- British Columbia
- British Council
- British Currency
- British Empire
- British Empire, Most Excellent Order Of The
- British Expeditionary Force (BEF)
- British Indian Ocean Territory
- British Isles
- British Library
- British Lions
- British Medical Association (BMA)
- British Museum
- British North America Act
- British South Africa Company
- British Sports Association For The Disabled
- British Standards Institution (BSI)
- British Thermal Unit
- Britney (Jean) Spears Biography (1981– )
- Brittany (Fr Bretagne)
- Brittany Spaniel
- Brittle Bone Syndrome
- Brittle Star
- Britton Chance Biography (1913– )
- Brno (Ger Brünn)
- Broad Bean
- Broadband ISDN (B-ISDN)
- Broadbill
- Broadcasting
- Broadmoor
- Broads, The (also known as The Norfolk Broads)
- Broadstairs
- Broadway
- Broccoli
- Broken Hill
- Bromeliad
- Bromine
- Bromoil Process
- Bronchi
- Bronchiectasis
- Bronchitis
- Bronchodilators
- Bronchoscopy
- Bronislava Nijinska Biography (1891–1972)
- Bronislaw (Kasper) Malinowski Biography (1884–1942)
- Bronislaw Nagurski Biography (1908–90) (known as Bronko)
- Bronkhorsten And Heekeren
- Bronson (Crocker) Howard Biography (1842–1908)
- Bronson M(urray) Cutting Biography (1888–1935)
- Brontë (originally Brunty or Prunty)
- Bronx Or The Bronx
- Bronze
- Brook Taylor Biography (1685–1731)
- Brookline
- Brooklyn
- Brooklyn Bridge
- Brooks Adams Biography (1848–1927)
- Brooks Atkinson Biography (1894–1984)
- Broom
- Broomrape
- Brother Roger Of Taizé Biography (1915–2005) (originally Roger Louis Schutz-Marsauche)
- Brown Algae
- Brown Bear
- Brown Dwarf
- Brownian Movement Or Motion
- Browning
- Browning Automatic Rifle
- Brownshirts
- Browser
- Bruce (Alonzo) Goff Biography (1904–82)
- Bruce (Charles) Heezen Biography (1924–77)
- Bruce (Edward) Babbitt Biography (1938– )
- Bruce (Fairchild) Barton Biography (1886–1967)
- Bruce (Frederick Joseph) Springsteen Biography (1949– )
- Bruce (James) Smeaton Biography (1938– )
- Bruce A(lan) Bolt Biography (1930– )
- Bruce A(rnold) Ackerman Biography (1943– )
- Bruce Beresford Biography (1940– )
- Bruce Catton Biography (1899–1978)
- Bruce Conner Biography (1933– )
- Bruce Forsyth Biography (1928– ) (popular name of Bruce Joseph Forsyth-Johnson)
- Bruce Kent Biography (1929– )
- Bruce Nauman Biography (1941– )
- Bruce Oldfield Biography (1950– )
- Bruce Smith Biography (1892–1955)
- Bruce Wasserstein Biography (1947– )
- Bruce Willis Biography (1955– )
- Brucellosis
- Bruges (Flemish Brugge)
- Bruggen, Carry Van Biography (1881–1932) (originally Carolina Lea de Haan)
- Bruise
- Bruitisme
- Bruna, Dick Biography (1927– )
- Brunei
- Brunetto Latini Biography (c.1220–c.94)
- Brunhild, Brunhilde, Or Brynhild
- Bruno Apitz Biography (1900–79)
- Bruno Barilli Biography (1880–1952)
- Bruno Bauer Biography (1809–82)
- Bruno Bettelheim Biography (1903–90)
- Bruno Cicognani Biography (1879–1971)
- Bruno Kreisky Biography (1911–90)
- Bruno Maderna Biography (1920–73)
- Bruno Rossi Biography (1905–93)
- Bruno Walter Biography (1876–1962) (originally Bruno Walter Schlesinger)
- Brunswick (Ger Braunschweig)
- Brush Turkey
- Brussels (Flemish BrusselFr Bruxellesancient Broucsella)
- Brussels Sprout
- Brussels, Treaty Of (1948)
- Brussels, Treaty Of (1973)
- Brutalism Or New Brutalism
- Bryan (Charles) Gould Biography (1939– )
- Bryan Donkin Biography (1768–1855)
- Bryan Forbes Biography (1926– )
- Bryant (Charles) Gumbel Biography (1948– )
- Bryce N(athaniel) Harlow Biography (1916–87)
- Bryce Wood Biography (1909–86)
- Bryggen
- Bryn Terfel Biography (1965– ) (originally Bryn Terfel Jones)
- Bryophyte
- Bryozoa
- Bryson Burroughs Biography (1869–1934)
- BSE Crisis
- Bubble Chamber
- Bubble Jet Printer
- Bubble Memory
- Bucaramanga
- Buccaneers
- Bucharest (Romanian Bucureştiancient Cetatea Damboviţei)
- Buchenwald
- Buck Owens Biography (1929–2006) (popular name of Alvis E Owens)
- Buck Persons Biography (1909– ) (popular name of Wallace R Persons)
- Buckingham Palace
- Buckinghamshire
- Buckler Fern
- Buckminsterfullerene
- Buckthorn
- Buckwheat
- Bucky Harris Biography (1896–1977) (popular name of Stanley Raymond Harris)
- Bud Fisher Biography (1885–1954) (popular name of Harry C(onway) Fisher)
- Bud Powell Biography (1924–66) (popular name of Earl Powell)
- Bud Wilkinson Biography (1915–94) (popular name of Charles Burnham Wilkinson)
- Budapest
- Budd Schulberg Biography (1914– )
- Buddh Gaya Or Bodh Gaya
- Buddha Biography (c.563–c.483 BC) ((‘the enlightened one’))
- Buddhaghosa Biography (5th-c)
- Buddhism
- Budding
- Buddleia Or Buddleja
- Buddy Bolden Biography (1877–1931) (popular name of Charles Joseph Bolden)
- Buddy Holly Biography (1936–59) (popular name of Charles Hardin Holley)
- Buddy Rich Biography (1917–87) (originally Bernard Rich)
- Budgerigar
- Budget
- Buenaventura
- Buenaventura Bassegoda Y Amigó Biography (1862–1940)
- Buenos Aires
- Buffalo
- Buffalo Bob Smith Biography (1917– ) (popular name of Robert Smith)
- Buffer (chemistry)
- Buffer (computing)
- Buffer State
- Buffon's Needle
- Bug (computing)
- Bug (entomology)
- Buginese Or Bugi
- Bugle (botany)
- Bugle (music)
- Bugloss
- Bugs Baer Biography (1886–1969) (popular name of Arthur Baer)
- Buhl Or Boulle
- Building Biology
- Building Society
- Buitenzorg (now Bogor)
- Bujumbura (formerly Usumbura)
- Bukkyo
- Bulawayo
- Bulb