- Babin, Louis
- Babin, Magali
- Bach, Johann Sebastian
- Bacri, Nicolas
- Baker, Michael J
- Balakauskas, Osvaldas
- Ballif, Claude
- Bandem, Ni Luh Swasti Wijaya
- Barber, Samuel
- Barraqué, Jean
- Barrière, Françoise
- Barry, Gerald
- Bartholomée, Pierre
- Bartók, Béla
- Basanta, Adam
- Bashaw, Howard
- Bauer, Bob
- Bayle, François
- Beaudoin, Pierre-Marc
- Bec, Jean-Philippe
- Bédard, Martin
- Bedford, David
- Beecroft, Norma
- Beethoven, Ludwig van
- Beffa, Karol
- Behzadi, Ashkan
- Béland, Philippe
- Beliavsky, Daniel
- Belkin, Alan
- Bell, Allan Gordon
- Bellemare, Gilles
- Benhamou, Maurice
- Benjamin, Arthur
- Beratha, I Wayan
- Berberian, Cathy
- Berg, Alban
- Berger, Michael
- Berger, Michel
- Berio, Luciano
- Berlioz, Hector
- Bernaola, Carmelo A
- Bernier, Nicolas
- Bernstein, Leonard
- Bértola, Eduardo
- Bertoncini, Mario
- Bertrand, Simon
- Bhagwati, Sandeep
- Biasutti, Michele
- Bilinska, Aleksandra
- Billings, William
- Bingen, Hildegard of
- Biró, Dániel Péter
- Birtwistle, Harrison
- Bittová, Iva
- Bizet, Georges
- Blais, Jérôme
- Blanchard, Pierre-Guy
- Blavet, Michel
- Blondeel, Michèle
- Blouin, Jean-François
- Blumer, Theodor
- Boëllmann, Léon
- Boesmans, Philippe
- Boeswillwald, Pierre
- Boisvert, Félix
- Boivin, Michel
- Bolcom, William
- Bollen, Jan-Bas
- Bolstad, Kristin
- Bonis, Mélanie Hélène
- Bonn, Ana
- Bonnier, Bernard
- Boone, Benjamin
- Boone, Charles
- Bornstein, Charles Zacharie
- Börtz, Daniel
- Bosc, René
- Bosse, Denis
- Bouchard, Christian
- Bouchard, Jean-Marc
- Bouchard, Linda
- Boucher, Myriam
- Boucher, Nicolas
- Boucher, Richard
- Boucher, Vincent
- Bouchot, Vincent
- Boucourechliev, André
- Boudreau, Michelle
- Boudreau, Walter
- Bouhalassa, Ned
- Boulanger, Lili
- Boulez, Pierre
- Bouliane, Denys
- Bourdellon, Jérôme
- Bourque, Guillaume
- Brady, Tim
- Brahms, Johannes
- Braid, David
- Brasset, Marie-Pierre
- Breault, Marie-Hélène
- Brégent, Michel-Georges
- Breuleux, Yan
- Brewaeys, Luc
- Britten, Benjamin
- Brkljačić, Ivan
- Brook, Taylor
- Brooks, William
- Brophy, Dan
- Brouwer, Leo
- Brown, Earle
- Browne, Joseph
- Bruch, Max
- Brustad Melhus, Bjørn Thomas
- Bruzdowicz, Joanna
- Bulsink, Wilbert
- Bunch, James
- Burke, John
- Burke, Mitch
- Burman, Rachel
- Burns, Chris
- Burton, Alexandre
- Bushnell, Michael
- Bussotti, Sylvano
- Butterfield, Christopher
- Buxtehude, Dietrich
