| Baek Byung-ok | | South Korea | 5 |
| Bai Baoshan | 1996 - 1997 | China | 15-17 |
| Bai Ningyang | 2006 | China | 12 |
| Baikuntha Shukla | 1932 | India | 1 |
| Bandali Michael Debs | 1995 - 1998 | Australia | 4 |
| Banita Jacks | 2007 | USA | 4 |
| Baptistine Philip | 1871 - 1878 | France | 3 |
| Barbara Elaine Wood Graham | 1953 | USA | 1 |
| Barbara Marie Opel | 2001 | USA | 1 |
| Barbara Stager | 1988 | USA | 1 |
| Bård Guldvik Eithun | 1992 | Norway | 1 |
| Barry Lee Fairchild | 1983 | USA | 1 |
| Barry Peter Prudom | 1982 | United Kingdom | 3 |
| Bartholomew Boriello | 1967 - 1991 | USA | 1 |
| Bartolomeo Gagliano | 1981 - 1989 | Italy | 3 |
| Baruch Kopel Goldstein | 1994 | USA / Israel | 29 |
| Bathsheba Ruggles Spooner | 1778 | USA | 1 |
| Beate Schmidt | 1989 - 1991 | Germany | 6 |
| Beatrice Cenci | 1598 | Italy | 1 |
| Beauford James White | 1974 - 1978 | USA | 6 |
| Béla Kiss | 1903 - 1914 | Hungary | 24+ |
| Belle Gunness | 1884 - 1908 | USA | 14+ |
| Beltrán Dalay Cortés Carvajal | 1934 - 1938 | Costa Rica | 4 |
| Benjamin Adam Sifrit | 2002 | USA | 1 |
| Benjamin Atkins | 1991 - 1992 | USA | 11 |
| Benjamin Geen | 2003 - 2004 | United Kingdom | 2+ |
| Benjamin Siegel | 1920 - 1947 | USA | 3+ |
| Beoria Simmons | 1981 - 1983 | USA | 3 |
| Bernadette Protti | 1984 | USA | 1 |
| Bernard Bolender | 1980 | USA | 4 |
| Bernard Eugene Giles | 1973 | USA | 5 |
| Bernardo Anzures | 1948 | Philippines | 2 |
| Bernhard Prigan | 1947 - 1952 | Germany | 3+ |
| Bert Leroy Hunter | 1968 - 1988 | USA | 3 |
| Bertha Alice Williams Graham Gifford | 1900 - 1928 | USA | 3+ |
| Berthold Wehmeyer | 1947 | Germany | 1 |
| Bertrand Lucien Bruno Cantat | 2003 | France | 1 |
| Betty Lou Beets | 1983 | USA | 1 |
| Beverley Gail Allitt | 1991 | United Kingdom | 4+ |
| Bhagat Singh | 1928 - 1931 | India | 2 |
| Bharat Kalicharan | 1991 - 2004 | India | 3+ |
| Bible John | 1968 - 1969 | Presumed Scotland | 3 |
| Bigler Jobe Stouffer II | 1985 | USA | 2 |
| Bill Kelly | 1887 | USA | 11 |
| Billy Bailey | 1979 | USA | 2 |
| Billy Edwin Reid | 1989 - 1995 | USA | 2 |
| Billy Lee Chadd | 1974 - 1978 | USA | 4+ |
| Billy Ray Hamilton | 1980 | | 3 |
| Billy Ray Waldon | 1985 - 1986 | USA | 3 |
| Billy Richard Glaze | 1986 - 1987 | USA | 3+ |
| Biswanath Halder | 2003 | India | 1 |
| Björn Pétursson | 1570 - 1596 | Iceland | 9 - 18 |
| Blanche Taylor Moore | 1968 - 1989 | USA | 1+ |
| Bobby Frank Cherry | 1963 | USA | 4 |
| Bobby Jack Fowler | 1973 - 1995 | USA | 20+ |
| Bobby Joe Long | 1984 | USA | 10 |
| Bobby Lee Cutts Jr. | 2007 | USA | 2 |
| Bogdan Eugeniusz Arnold | 1966 - 1967 | Poland | 4 |
| Bonnie Emily Brown | 1953 | USA | 1 |
| Boris Dekanidze | 1993 - 1994 | Lithuania | 1 |
| Boris Vasilyevich Gusakov | 1964 - 1968 | Soviet Union | 6 |
| Brad Keith Sigmon | 2001 | USA | 2 |
| Bradley Robert Edwards | 1996 - 1997 | Australia | 2+ |
| Brahim Aouissaoui | 2020 | Tunisia | 3 |
| Brandon Astor Jones | 1979 | USA | 1 |
| Brandon Wade Hein | 1995 | USA | 1 |
| Brandon Wayne Hedrick | 1997 | USA | 1 |
| Brandy Bain Jennings | 1995 | USA | 3 |
| Brenda Ann Spencer | 1979 | USA | 2 |
| Brenda Cecilia Agüero | 2022 | Argentina | 5 |
| Brenda Evers Andrew | 2001 | USA | 1 |
| Brenda Hodge | 1984 | Australia | 1 |
| Brenton Harrison Tarrant | 2019 | Australia | 51+ |
| Brett Carlson | 2004 | USA | 1 |
| Brett Peter Cowan | 2003 | Australia | 1 |
| Brian Dennis Salter | 1992 | USA | 1 |
| Brian Gene Nichols | 2005 | USA | 4 |
| Brian James Dugan | 1983 - 1985 | USA | 3+ |
| Brian Keith Baldwin | 1977 | USA | 1 |
| Brian Mark Blackwell | 2004 | United Kingdom | 2 |
| Brigitte Harris | 2007 | USA | 1 |
| Briley Piper | 2000 | USA | 1 |
| Britnee Angelique Miller | 2010 | USA | 1 |
| Brittany Marlowe Holberg | 1996 | USA | 1 |
| Brittany Norwood | 2011 | USA | 1 |
| Bruce Alan Davis | 1971 - 1982 | USA | 3+ |
| Bruce Allan Burrell | 1995 - 1997 | Australia | 2 |
| Bruce Everitt Lindahl | 1974 - 1981 | USA | 3+ |
| Bruce George Peter Lee | 1973 - 1979 | United Kingdom | 12 |
| Bruce Mendenhall | 2007 | USA | 3+ |
| Bruno Richard Hauptmann | 1932 | Germany | 1 |
| Bryan Frederick Jennings | 1979 | USA | 1 |
| Bryan Maurice Jones | 1985 - 1986 | USA | 2+ |
| Brydon Brandt | 1989 - 1997 | South Africa | 4+ |
| Buddy Earl Justus | 1978 | USA | 1 |
| Buford O'Neal Furrow Jr. | 1999 | USA | 1 |
| Bulelani Mabhayi | 2007 - 2012 | South Africa | 20 |
| Burton Wilbur Abbott | 1955 | USA | 1 |
| Byron De La Beckwith Jr. | 1963 | USA | 1 |
| Byron Lewis Black | 1988 | USA | 3 |
