Category:American composers
- Irving Berlin
- Derek Bermel
- Elmer Bernstein
- Leonard Bernstein
- Charles Roland Berry
- Johanna Beyer
- Philip Bezanson
- Frederick Bianchi
- James Biery
- W. Watts Biggers
- Jerry Bilik
- William Billings
- Phillip Bimstein
- Bob Birch
- John Bischoff (musician)
- The Biscuit Burners
- Easley Blackwood, Jr.
- William Burdine Blake, Sr.
- Edward Bland
- Ralph Blane
- Charles Blenzig
- Ernest Bloch
- Jeff Blumenkrantz
- Edward Boatner
- Harold Boatrite
- Jay Bocook
- John Boda
- William Bolcom
- Margaret Bonds
- Benjamin Boretz
- Elliot del Borgo
- Jeff Bova
- Paul Bowles
- Peter Boyer
- Martin Boykan
- Andrew Boysen
- William Batchelder Bradbury
- Michael Bradley (singer)
- Scott Bradley
- Sean Bradley
- Janeen Brady
- Henry Brant
- Anthony Braxton
- Tyondai Braxton
- Kitty Brazelton
- Thom Brennan
- Jerry Bresler
- Martin Bresnick
- Jim Brickman
- Emily Anna Bridges
- Jon Brion
- Howard Brockway
- Brooks Bowman
- Bruce Broughton
- Margaret Brouwer
- James Brown
- Nappy Brown
- Neely Bruce
- Albert E. Brumley
- Herbert Brun
- George Bruns
- Mark Brunswick
- John Bucchino
- Buckethead
- Margaret Buechner
- Peter Buffett
- Amos Bull