The Lexicon entries below explore significant Holocaust-related events, topics, places and personalities and are based on Yad Vashem's Encyclopedia of the Holocaust.
- Belzec
- Benes, Edvard
- Ben-Gurion, David
- Benoit, Marie
- Bergen-Belsen
- Bergson Group
- Bericha
- Berlin
- Berman, Adolf Abraham
- Bermuda Conference
- Bernadotte, Folke
- Bernheim Petition
- Beskin, Izrail Solomonovich
- Bessarabia
- Best, Werner
- Bialystok
- Biebow, Hans
- Bielski, Tuvia
- Black Book of Soviet Jewry, The
- Blechhammer
- Blitzkrieg
- Blobel, Paul
- Blum, Abraham
- Blum, Leon
- Board of Deputies of British Jews
- Bogaard, Johannes
- Bogdanovka
- Bohemia and Moravia, Protectorate of
- Bonhoeffer, Dietrich
- Bor-Komorowski, Tadeusz
- Borkowska, Anna
- Bormann, Martin
- Bothmann, Hans
- Bousquet, Rene
- Boycott, Anti-Jewish
- Boycotts, Anti-Nazi
- Brack, Victor
- Brand, Joel
- Bratislava
- Breendonk
- Brizgys, Vincentas
- Brunner, Alois
- Brussels
- Bucharest
- Buchenwald
- Budapest
- Budzyn
- Bukovina
- Bulgaria
- Bund