- Baca, Joe
- Baca, Lee
- Bachus, Spencer
- Backer, Terry
- Bailey, John
- Baird, Brian
- Baker III, Rushern L.
- Baker, Carey
- Baker, Larry
- Baker, Richard H
- Baker, Thomas
- Baker, Walter M
- Baldwin, Tammy
- Ballard, Charles
- Ballenger, Cass
- Ballou, John
- Barcelona, Vicky Cristina
- Barkley, Charles E.
- Barnes, John
- Barnes, Mike
- Barr, Bob
- Barraga, Thomas F
- Barry, Warren E
- Bartlett, Joseph R
- Bartlett, Roscoe G
- Barton, Joe
- Barve, Kumar P
- Bass, Karen
- Battin, Jim
- Baucus, Max
- Bayh, Evan
- Beary, Kevin
- Beatty, Joyce
- Becerra, Xavier
- Beck, Chris
- Beck, Tom
- Beebe, Mike
- Belcher, Larry
- Bell, Larry
- Bell, Pat
- Bennett, Robert
- Benson, Joanne C.
- Berkley, Shelley
- Berman, Howard L
- Biden, Joe
- Biggert, Judy
- Bilandic, Michael
- Bingaman, Jeff
- Bishop, Tim
- Blackburn, Marsha
- Blagojevich, Rod
- Blair, Tony
- Blanchard, Jay
- Bloomberg, Michael
- Blount, Clarence W
- Blumenauer, Earl
- Blumenthal, Richard
- Blunt, Roy
- Bobo, Elizabeth
- Boehner, John
- Boehner, John A
- Bogdanoff, Ellyn
- Boland, Mike
- Bolling, Bill
- Bond, Christopher
- Bonilla, Henry
- Bonior, David E
- Bonner, Dennis
- Bono, Mary
- Boschert, David G
- Bost, Mike
- Boucher, Rick
- Boutin, Charles R
- Bowen, Debra
- Boxer, Barbara
- Boyd, Allen
- Boyer, Jim
- Boyle, Frank
- Bozman, Bennett
- Bradford, Jim
- Bradley, Richard T
- Bradshaw, Ric
- Brady, Dan
- Brady, Kevin
- Branch, Talmadge
- Bratton, William
- Breaux, John
- Brightbill, David J
- Brinkley, David R
- Brogan, Frank
- Bromwell, Thomas L
- Bronrott, William A
- Brown, Alan
- Brown, Anthony G
- Brown, Bob
- Brown, Corrine
- Brown, Fred
- Brown, Gordon
- Brown, Jack
- Brown, Jeff
- Brown, Jerry
- Brown, Joe E
- Brown, Lisa
- Brown, Rich
- Brown, Richard
- Brown, Robert
- Brown, Roy
- Brown, Sherrod
- Brown-Waite, Ginny
- Brownback, Sam
- Browner, Carol
- Bruno, Joseph
- Bruno, Joseph L
- Bryant, Ed
- Buchanan, James
- Bucher, Susan
- Buck, Frank
- Bunning, Jim
- Burke, Brian
- Burke, Edward M.
- Burke, Yvonne Burke
- Burns, Conrad
- Burns, Emmett C. Jr
- Burr, Richard
- Burris, Roland
- Burt, Locke
- Burton, Dan
- Burton, Joe
- Burton, John
- Busch, Michael E
- Bush, George
- Bush, George H.W.
- Bush, Jeb
- Buyer, Steve
- Byrd, Richard
- Byrd, Robert
- Byrne, Jane