B
- Bad Rabbits - Band
- Algernon Sidney Badger - government official in New Orleans during and after Reconstruction
- Arthur Baker – Rap DJ, Music Producer
- Dana Barros – Former NBA Player for Supersonics & Celtics
- Erinn Bartlett – Actress
- Zered Bassett – Professional Skateboarder
- Bang Camaro – Rock Band
- Benjamin E. Bates – Founder and namesake of Bates College
- Susan Batson – Actress, Author, and Producer; Daughter of Ruth Batson
- Ruth Batson – Civil Rights and Education Activist
- Peter D. Bear – Wisconsin State Senator
- Alexander Graham Bell – Inventor
- Bell Biv DeVoe – Music Group
- Gaston Bell - Stage and Silent Screen Actor
- Tobin Bell – Actor (Born in Queens, NY, raised in Weymouth)
- Mark Bellhorn – Professional Baseball Player
- Asher Benjamin – Architect and Author
- Frank Weston Benson – Impressionist Artist
- Rick Berlin – Musician
- Leonard Bernstein – Music conductor, composer and pianist
- Travis Best – NBA player
- Big D and the Kids Table – Band
- Big Shug – Rapper
- Traci Bingham – Actress, Model
- Mike Birbiglia – Comedian
- Will Blalock – NBA player for Detroit Pistons
- Matt Bloom – Former NFL Player & WWE Superstar
- Michael Bloomberg – Mayor of New York City
- Bob and Ray – Comedy Team
- Ray Bolger – Actor / Dancer
- Boston – Band
- Ron Brace – NFL Nose Tackle, New England Patriots
- Nathaniel Jeremiah Bradlee, architect
- William J. Bratton – Chief of police for LAPD
- John Britton, abortion provider
- Edward W. Brooke – First African American to be elected by popular vote to the United States Senate
- Bobby Brown – Singer
- Carolyn Brown – Dancer, Writer, Choreographer
- Earle Brown – Composer
- Rob Brown – Actor (born in Harlem, New York, attended Amherst College)
- Sam Brown – Comedian from the IFC sketch comedy show Whitest Kids U' Know
- Scott Brown - US Senator
- Charles Bulfinch – Architect who designed the Massachusetts State House and the original United States Capitol dome and rotunda
- Ernie Boch, Jr. – President of Boch Enterprises
- Boys Like Girls – Band
- Edwin C. Burt – shoemaker
- Bury Your Dead – Band
- George H.W. Bush – 41st President of The United States
- Vannevar Bush – American Scientist
- James "Whitey" Bulger – organized crime boss
Read more about this topic: List Of Bostonians