Encyclopedias, Almanacs, Transcripts, and Maps
- Black, Jeremiah S. (1810–1883)
- Blackmun, Harry A. (1908–)
- Blackmun, Harry A. (1908–) (Update 1)
- Blackmun, Harry A. (1908–1999) (Update 2)
- Blackstone, William (1723–1780)
- Blaine Amendment (1875)
- Blair, John (1732–1800)
- Blatchford, Samuel (1820–1893)
- Blount, William (1749–1800)
- Blue Ribbon Jury
- Blum v. Yaretsky 457 U.S. 991 (1982) RENDELL-BAKER v. KOHN 457 U.S. 830 (1982)
- Blyew v. United States 80 U.S. 581 (1872)
- Board of Curators v. Horowitz 435 U.S. 78 (1979)
- Board of Education of Kiryas Joel Village School District v. Grumet 512 U.S. 687 (1994)
- Board of Education of the Westside Community Schools v. Mergens 496 U.S. 226 (1990)
- Board of Education v. Allen 392 U.S. 236 (1968)
- Board of Education v. Pico 457 U.S. 853 (1982)
- Board of Regents v. Roth 408 U.S. 564 (1972)
- Board of Trustees of State University of New York v. Fox 492 U.S. 469 (1989)
- Bob Jones University v. United States 461 U.S. 574 (1983)