- Baab
- Babadzhanov
- Babaria
- Babazadeh
- Babbitt
- Babcock
- Babecka
- Babonis
- Babovec
- Babson
- Baca
- Bacchus
- Bachand
- Bacik
- Backen
- Backes
- Bacon
- Baddour
- Bader
- Badynskyj
- Baer
- Baethke
- Baez
- Bagley
- Bagwell
- Baier
- Bail
- Bailes
- Bailey
- Bain
- Baird
- Baiz
- Baker
- Bakker
- Baldetti
- Baldovino
- Baldwin
- Balhorn
- Ball
- Ballard
- Balletti
- Ballman
- Balls
- Balogh
- Balsiger
- Baltierra
- Balzer
- Ban
- Banahan
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- Bangalore
- Banken
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- Bankson
- Bankwitz
- Bansal
- Banuelos
- Baran
- Barber
- Barbera
- Barboro
- Barcelona
- Bardwell
- Barger
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- Baricevic
- Barilla
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- Barilone
- Barker
- Barkley
- Barkoczy
- Barksdale
- Barkworth
- Barlow
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- Barnaby
- Barnard
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- Barnett
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- Barnhart
- Baron
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- Barraza
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- Barrios
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- Barto
- Barton
- Bartosik
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- Barwick
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- Basche
- Basel
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- Basinger
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- Basso
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- Basuk
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- Bathgate
- Batista
- Battershell
- Battle
- Baudhuin
- Bauer
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- Baughman
- Baum
- Bauman
- Baumann
- Baumgardner
- Baumgarth
- Baumhofer
- Bautista
- Bawden
- Baxter
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- Bayers
- Bayham
- Bayles
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- Bazan
- Bazso
- Bea
- Beach
- Beadle
- Bealer
- Beam
- Beaman
- Bean
- Beane
- Beard
- Beardmore
- Beasley
- Beattie
- Beatty
- Beaty
- Beauchamp
- Beaupre
- Beaver
- Beberniss
- Becchina
- Bechtel
- Bechtold
- Beck
- Becka
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- Beckermann
- Beckman
- Beckstead
- Beckstein
- Beckstrom
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- Beckvar
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- Becvar
- Bedard
- Bedi
- Bedman
- Beebe
- Beeles
- Beenau
- Beenken
- Beerman
- Beeson
- Behl
- Behm
- Behney
- Behr
- Behrens
- Behringer
- Beier
- Beiley
- Bekey
- Belanger
- Belfiore
- Beliveau
- Belkin
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- Bell
- Bellamy
- Bellantuono
- Bellar
- Bellin
- Bellis
- Bellmont
- Bellovin
- Bellrichard
- Belsey
- Belshe
- Belsher
- Beltran
- Bemmerl
- Benavides
- Benavidez
- Bender
- Benedict
- Benich
- Bening
- Benitez
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- Benkiel
- Bennallack
- Bennett
- Bennette
- Benninghoff
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- Bentheim
- Bentley
- Bentz
- Benvin
- Berard
- Berardi
- Beraud
- Bercea
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- Berg
- Bergen
- Berger
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- Bergstrom
- Berkeley
- Berkey
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- Berletic
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- Bernal
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- Bernier
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- Bertilson
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- Betancourt
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- Betz
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- Bever
- Beveridge
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- Bigioni
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- Bikoski
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- Billingsly
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- Birkemeier
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- Birtciel
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- Bistricky
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- Black
- Blackburn
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- Blackstock
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- Blair
- Blake
- Blakesley
- Blanchard
- Blanco
- Bland
- Blanding
- Blank
- Blankenship
- Blankinship
- Blansett
- Blaschak
- Blasi
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- Bleasdale
- Bledsoe
- Blessington
- Bleyl
- Blinka
- Blinn
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- Blocher
- Block
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- Bloom
- Bloomfield
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- Blough
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- Blumberg
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- Blyth
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- Boan
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- Bochinski
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- Boehm
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- Boesen
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- Bogardus
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- Bogli
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- Bohlmann
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- Bojorquez
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- Bold
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- Bolek
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- Bollinger
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- Bolvin
- Bond
- Bonden
- Bondurant
- Bonebrake
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- Bonesteel
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- Bonine
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- Bonstelle
- Bonte
- Bool
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- Boos
- Bootsma
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- Born
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- Bosch
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- Bostwick
- Bott
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- Bouma
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- Bowie
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- Bowles
- Bowling
- Bowlsby
- Bowlus
- Bowman
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- Boyd
- Boykins
- Boylan
- Boyle
- Boynton
- Bozzuto
- Bracale
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- Bradway
- Brady
- Braendle
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- Brambila
- Bramlett
- Brand
- Brandenberger
- Brandenburger
- Brandes
- Brandon
- Brandsma
- Brandt
- Brandy
- Branigan
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- Brant
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- Brasch
- Brashears
- Braslavsky
- Brass
- Brassell
- Bratton
- Braun
- Braverman
- Brawley
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- Brayman
- Brazier
- Breault
- Breedlove
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- Brekke
- Brendecke
- Brengel
- Brennan
- Brennard
- Brenneman
- Brenner
- Bresee
- Breseman
- Bressler
- Bressor
- Breuer
- Brevig
- Brewer
- Bride
- Bridges
- Bridgewater
- Brignall
- Briley
- Brininger
- Brinkley
- Brinkmann
- Briscoe
- Briski
- Britt
- Brittell
- Brittin
- Brklacich
- Broacha
- Brock
- Brockhurst
- Brockus
- Brodersen
- Brodie
- Brodt
- Broeder
- Broeker
- Broerman
- Broermann
- Brokaw
- Bromme
- Broniarczyk
- Bronk
- Bronski
- Bronson
- Bronstein
- Brooker
- Brooks
- Brophy
- Brosnan
- Brotherton
- Brouch
- Brough
- Brown
- Brown-Elwood
- Browning
- Bruce
- Bruda
- Brueckner
- Bruhn
- Brumfield
- Brumm
- Bruner
- Bruni
- Bruning
- Bruno
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- Brunton
- Brusa
- Brutcher
- Bryan
- Bryant
- Bryce
- Brzezinski
- Brzoznowski
- Buchan
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- Buchda
- Buchholz
- Buchmelter
- Bucho
- Buck
- Buckles
- Buckley
- Buckner
- Buda
- Budday
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- Budz
- Buechel
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- Bueno
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- Bufano
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- Buglino
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- Bui
- Bukowiec
- Bulger
- Bulkeley
- Bulkis
- Bull
- Bullock
- Bulman
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- Bunnell
- Bunten
- Bunting
- Bunyard
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- Burcham
- Burchett
- Burchfield
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- Burdick
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- Burger
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- Burkhalter
- Burkhard
- Burkhardt
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- Burleson
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- Burrell
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- Burruel
- Burrus
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- Burtnyk
- Burton
- Busby
- Busch
- Buschman
- Busdicker
- Busdosh
- Buse
- Bush
- Busheme
- Bushmaker
- Bushofsky
- Buso
- Busse
- Bussoletti
- Bustamante
- Bustoz
- Butera
- Butkiewicz
- Butler
- Butterfield
- Butterfly
- Buttermore
- Buxton
- Buys
- Byassee
- Byerhoff
- Byerlein
- Byrne
- Byron