- 501 U.S. 1 (1991) Connecticut v. Doehr
- 501 U.S. 32 (1991) Chambers v. Nasco Inc.
- 501 U.S. 78 (1991) Johnson v. Home State Bank
- 501 U.S. 104 (1991) Astoria Federal Savings and Loan Association v. Solimino
- 501 U.S. 115 (1991) Gollust v. Mendell
- 501 U.S. 129 (1991) Burns v. United States
- 501 U.S. 157 (1991) Toibb v. Radloff
- 501 U.S. 171 (1991) McNeil v. Wisconsin
- 501 U.S. 190 (1991) Litton Financial Printing Division Division of Litton Business Systems Inc. v. National Labor Relations Board
- 501 U.S. 221 (1991) Oklahoma v. New Mexico
- 501 U.S. 252 (1991) Metropolitan Washington Airports Authority v. Citizens for the Abatement of Aircraft Noise Inc.
- 501 U.S. 294 (1991) Wilson v. Seiter
- 501 U.S. 312 (1991) Renne v. Geary
- 501 U.S. 350 (1991) Lampf, Pleva, Lipkind, Prupis & Petigrow v. Gilbertson
- 501 U.S. 380 (1991) Chisom v. Roemer
- 501 U.S. 419 (1991) Houston Lawyers' Association v. Attorney General of Texas
- 501 U.S. 429 (1991) Florida v. Bostick
- 501 U.S. 452 (1991) Gregory v. Ashcroft
- 501 U.S. 496 (1991) Masson v. New Yorker Magazine Inc.
- 501 U.S. 529 (1991) James Beam Distilling Company v. Georgia
- 501 U.S. 560 (1991) Barnes v. Glen Theatre Inc.
- 501 U.S. 597 (1991) Wisconsin Public Intervenor v. Mortier
- 501 U.S. 624 (1991) Schad v. Arizona
- 501 U.S. 663 (1991) Cohen v. Cowles Media Company
- 501 U.S. 680 (1991) Pauley v. Bethenergy Mines Inc.
- 501 U.S. 722 (1991) Coleman v. Thompson
- 501 U.S. 775 (1991) Blatchford v. Native Village of Noatak and Circle Village
- 501 U.S. 797 (1991) Ylst v. Nunnemaker
- 501 U.S. 808 (1991) Payne v. Tennessee
- 501 U.S. 868 (1991) Freytag v. Commissioner of Internal Revenue
- 501 U.S. 923 (1991) Peretz v. United States
- 501 U.S. 957 (1991) Harmelin v. Michigan
- 501 U.S. 1030 (1991) Gentile v. State Bar of Nevada
- 501 U.S. 1083 (1991) Virginia Bankshares Inc. v. Sandberg
- 501 U.S. 1239 (1991) Rector v. Bryant
- 501 U.S. 1262 (1991) Feltrop v. Missouri
- 501 U.S. 1282 (1991) McCleskey v. Bowers
- 501 U.S. 1283 (1991) Edap, S.A. v. Richard Wolf
- 501 U.S. 1301 (1991) Barnes v. E-Systems Inc. Group Hospital Medical & Surgical Insurance Plan
