- Babby
- Babitzke
- Babow
- Babski
- Bacal
- Bach
- Bachetti
- Bachman
- Back
- Backus
- Bacon
- Badilla
- Badman
- Baehr
- Baer
- Bagenstos
- Baget
- Baggett
- Baggin
- Bagley
- Bagshaw
- Bahl
- Bahr
- Bailey
- Baillargeon
- Baiocchetti
- Bair
- Baird
- Bajerski
- Bajgrowicz
- Bak
- Baker
- Bakko
- Bal
- Balbirer
- Balch
- Balczak
- Baldauff
- Balderrama
- Balderston
- Baldino
- Balducci
- Baldwin
- Bales
- Balich
- Balk
- Ball
- Ballard
- Ballentine
- Ballesteros
- Ballou
- Balsa
- Balsino
- Baltazar
- Balter
- Banales
- Bancroft
- Bangs
- Bankker
- Bannister
- Bannisters
- Banton
- Baran
- Baranowski
- Baravik
- Barbato
- Barber
- Barbercheck
- Barcelo
- Bardach
- Barden
- Bardo
- Bare
- Barefoot
- Barfield
- Barg
- Barillari
- Barkenbush
- Barker
- Barlett
- Barlow
- Barna
- Barnes
- Barnett
- Barnhill
- Barnitz
- Baron
- Barone
- Barr
- Barrales
- Barrandey
- Barras
- Barrasso
- Barrera
- Barrett
- Barrios
- Barron
- Barrow
- Barry
- Barsness
- Barstow
- Bart
- Bartels
- Barth
- Barton
- Bartsch
- Basakos
- Basco
- Basek
- Basel
- Bashner
- Bass
- Bassett
- Bastian
- Batch
- Bates
- Bathen
- Batik
- Battle
- Baty
- Bauer
- Bauerlein
- Bauernfeind
- Baughman
- Baum
- Bauman
- Baumann
- Baumer
- Baumgart
- Bavier
- Baxter
- Bayly
- Bazal
- Bazil
- Beach
- Beadling
- Beagle
- Beahan
- Beal
- Beals
- Bean
- Bearden
- Beardin
- Beardslee
- Bearrow
- Beaty
- Beauchamp
- Beauchene
- Beaudry
- Beauto
- Beavers
- Becerril
- Bechtel
- Bechtold
- Beck
- Becker
- Becklund
- Beckwith
- Becza
- Bedard
- Bedell
- Bedgood
- Bedo
- Bedwell
- Beebe
- Beede
- Beedle
- Beeker
- Beel
- Beeler
- Beene
- Beenken
- Beers
- Began
- Begley
- Behl
- Behm
- Behner
- Beier
- Beigel
- Beine
- Bejarano
- Belasco
- Belding
- Bell
- Belleau
- Bellinder
- Bellmeyer
- Bellomo
- Bellotti
- Belobraydic
- Beloff
- Beloney
- Belt
- Belton
- Belvees
- Belyea
- Belzer
- Bembenek
- Bemer
- Bemis
- Benaron
- Benavidez
- Benbow
- Bender
- Bendt
- Benenati
- Benigno
- Beninati
- Benitez
- Benke
- Benkert
- Bennett
- Benson
- Bentley
- Benton
- Benz
- Bequest
- Beran
- Bercheny
- Berg
- Bergen
- Berger
- Bergeron
- Bergfield
- Bergman
- Bergmeier
- Bergsma
- Bergstresser
- Berk
- Berkhout
- Berkman
- Berkshire
- Berlin
- Bermudez
- Bernal
- Bernard
- Berndt
- Berner
- Berney
- Bernhardt
- Berntson
- Bernu
- Beronius
- Berrellez
- Berry
- Bersbach
- Bertin
- Bertoli
- Bertolini
- Bertram
- Besler
- Bessey
- Best
- Beste
- Betanzos
- Bethea
- Bette
- Betts
- Bevans
- Bezila
- Bhalala
- Biagini
- Bialkowski
- Bianco
- Biasiello
- Bickel
- Bickerton
- Bicknell
- Bidegain
- Bieberstein
- Biedrzycki
- Bieging
- Bielec
- Bielon
- Bies
- Bieser
- Biesterfeld
- Bifulk
- Biggers
- Biggs
- Bilick
- Billheimer
- Binder
- Bindschadler
- Bingham
- Bingold
- Binns
- Biondini
- Birchak
- Birchfield
- Bird
- Birdman
- Bires
- Birkemeier
- Birkhead
- Birnie
- Birt
- Bischof
- Bishop
- Bishopp
- Bittenbender
- Bivings
- Biznichuk
- Bjorkquist
- Black
- Blackburn
- Blackketter
- Blackman
- Blackmer
- Blackmon
- Blackstock
- Blackwell
- Blackwood
- Blaha
- Blair
- Blais
- Blake
- Blaker
- Blanchard
- Bland
- Blandine
- Blank
- Blankenbaker
- Blanshan
- Blanton
- Blase
- Blatchford
- Blaylock
- Blea
- Blease
- Blecker
- Bleess
- Blehm
- Bleibtreu
- Bleibtreu-Roble
- Blesch
- Blevins
- Blick
- Bliss
- Block
- Blohm
- Blomn
- Blomquist
- Bloom
- Blount
- Blower
- Blue
- Blum
- Blumenstetter
- Blust
- Boal
- Boas
- Boatner
- Boatright
- Bock
- Bockerstette
- Bockisch
- Bockish
- Bockman
- Bode
- Bodkins
- Bodzioch
- Boede
- Boehm
- Boehme
- Boerner
- Boerum
- Boesewetter
- Boesiger
- Boggis
- Boggs
- Bogott
- Bogulas
- Bohannan
- Bohland
- Bohling
- Bohm
- Bohme
- Bohnenkamp
- Boice
- Boire
- Boisvert
- Bol
- Bolan
- Boldt
- Bolents
- Bolia
- Bollard
- Bolles
- Bollnow
- Boltinghouse
- Bolton
- Bomar
- Bon
- Bond
- Bondante
- Bonefas
- Bonello
- Boney
- Bonfanti
- Bonillas
- Bonkoski
- Bonnema
- Bonner
- Bonnet
- Bonneville
- Bonney
- Bonshoff
- Booker
- Boomgarden
- Boone
- Boorse
- Boos
- Boosted
- Bootes
- Booth
- Boothe
- Borboa
- Borders
- Borella
- Boren
- Borg
- Boring
- Boris
- Borland
- Bornhorst
- Bornstein
- Borquez
- Bosnos
- Bossie
- Boston
- Boswell
- Bott
- Botthof
- Bouchard
- Bouck
- Boudreaux
- Bouley
- Boulton
- Bourand
- Bourgeois
- Bourguet
- Bours
- Bouwens
- Bove
- Bowans
- Bowden
- Bowdoin
- Bowen
- Bower
- Bowers
- Bowie
- Bowlby
- Bowler
- Bowles
- Bowling
- Bowman
- Boyan
- Boyce
- Boyd
- Boyer
- Boyko
- Boyle
- Boynes
- Bozorgmehr
- Brabant
- Bracamonte
- Brace
- Braddock
- Braden
- Bradford
- Bradley
- Brady
- Brajevich
- Bramblett
- Branam
- Brand
- Brandau
- Brandt
- Branigan
- Branning
- Brant
- Branz
- Brascher
- Bratcher
- Bratt
- Bratton
- Braun
- Braunschweig
- Bravetti
- Bravin
- Bravo
- Brawner
- Bray
- Brazil
- Brchan
- Brean
- Brechbiel
- Brecher
- Breckenfeld
- Breckenridge
- Bredlow
- Bredwell
- Breedlove
- Breen
- Bregantini
- Breidenfeld
- Breiger
- Breitbart
- Breitenbach
- Brennan
- Brennen
- Breslow
- Brethour
- Brettrager
- Brevick
- Brewer
- Brewster
- Brickey
- Bridge
- Bridges
- Briere
- Briggman
- Briggs
- Bright
- Brightwell
- Brill
- Brimhall
- Bring
- Brinker
- Brinkley
- Brinton
- Briody
- Bristol
- Bristow
- Britsch
- Britt
- Brittain
- Brittenham
- Brixen
- Brizee
- Broad
- Broadbent
- Brobeck
- Brock
- Brockman
- Brockmann
- Brod
- Broder
- Brodie
- Brody
- Brodzinski
- Brogmus
- Brohaugh
- Brokaw
- Bromley
- Bronson
- Bronstein
- Brook
- Brookbank
- Brooks
- Broughton
- Brouk
- Brower
- Brown
- Browne
- Brownell
- Browning
- Brownson
- Brubaker
- Bruce
- Brucer
- Brudi
- Brue
- Bruggeman
- Brugger
- Bruins
- Bruk
- Brumitt
- Brun
- Brundage
- Brust
- Bryan
- Bryans
- Bryant
- Bryde
- Brydges
- Bryson
- Buch
- Buchanan
- Buchfink
- Bucholtz
- Buchsbaum
- Buck
- Buckert
- Buckner
- Bucks
- Budassi
- Budinger
- Buecher
- Buechler
- Buell
- Buelow
- Buffa
- Buffington
- Buglewicz
- Bugyik
- Buhl
- Bui
- Bulakowski
- Bulechek
- Bull
- Bultman
- Burbank
- Burch
- Burchell
- Burdick
- Buren
- Burge
- Burger
- Burgess
- Burgher
- Burke
- Burkel
- Burkes
- Burkett
- Burkey
- Burklow
- Burleson
- Burnell
- Burnett
- Burney
- Burnham
- Burnison
- Burns
- Burquez
- Burris
- Burros
- Burroughs
- Burrows
- Burruel
- Burtnett
- Burton
- Burtzloff
- Busboom
- Busby
- Busch
- Bush
- Bushell
- Bushey
- Bushroe
- Bustamante
- Butala
- Butcher
- Butelkin
- Butler
- Butterworth
- Butts
- Buzzard
- Byall
- Byerley
- Byerly
- Bynum
- Byrd
- Byrne
- Byrnes
- Byrum