Justice Sandra Day O'Connor
Voting and opinion record for Sandra Day O'Connor in the Supreme Court Database, covering the 1981 through 2005 Terms.
2,874decisions participated in
88%in the majority
355dissenting votes
300majority opinions written
Court eras served in this data: Burger Court, Rehnquist Court, Roberts Court.
Majority opinions by issue area
Most often on the same side
| Justice | Same side | Cases together |
|---|---|---|
| Warren E. Burger | 88.3% | 819 |
| William H. Rehnquist | 86.1% | 2,808 |
| Anthony M. Kennedy | 85.2% | 1,786 |
| Lewis F. Powell Jr. | 84.9% | 920 |
| Antonin Scalia | 81.6% | 2,019 |
Least often on the same side
| Justice | Same side | Cases together |
|---|---|---|
| Thurgood Marshall | 55.1% | 1,511 |
| William J. Brennan Jr. | 58.2% | 1,398 |
| John Paul Stevens | 66.0% | 2,833 |
| Harry A. Blackmun | 69.0% | 1,859 |
| Ruth Bader Ginsburg | 74.5% | 1,076 |
“Same side” means both Justices were in the majority, or both in dissent, in decisions where both voted; pairs with fewer than 50 shared decisions are left out.
Majority opinions written (300)
- Kelly A. Ayotte v. Planned Parenthood of Northern New England
- James Lockhart v. United States
- Schaffer v. Weast
- Michael Donald Dodd v. United States
- Margaret Bradshaw v. John David Stumpf
- Linda Lingle v. Chevron U.S.A. Inc.
- Charles Russell Rhines v. Douglas Weber
- Roderick Jackson v. Birmingham Board of Education
- Garrison S. Johnson v. California
- David Whitfield v. United States
- Norfolk Southern Railway Company v. James N. Kirby
- Yaser Esam Hamdi and Esam Fouad Hamdi as Next Friend of Yaser Esam Hamdi v. Donald H. Rumsfeld
- Robert James Tennard v. Doug Dretke
- David L. Nelson v. Donal Campbell
- Doug Dretke v. Michael Wayne Haley
- South Florida Water Management District v. Miccosukee Tribe of Indians
- John J. Fellers v. United States
- Securities and Exchange Commission v. Charles E. Edwards
- Georgia v. John Ashcroft
- Kevin Wiggins v. Sewall Smith
- Barbara Grutter v. Lee Bollinger
- Franchise Tax Board of California v. Gilbert P. Hyatt
- Virginia v. Barry Elton BlackLaw held unconstitutional
- City of Cuyahoga Falls v. Buckeye Community Hope Foundation
- Gary Albert Ewing v. California
- Bill Lockyer v. Leandro Andrade
- Yellow Transportation, Inc. v. Michigan
- Be & K Construction Company v. National Labor Relations Board
- Robert J. Devlin v. Robert A. Scardelletti
- City of Los Angeles v. Alameda Books, Inc.
- Tommy G. Thompson v. Western States Medical CenterLaw held unconstitutional
- United States v. Sandra L. Craft
- Lance Raygor and James Goodchild v. Regents of the University of Minnesota
- Toyota Motor Manufacturing v. Ella Williams
- United States Postal Service v. Maria A. Gregory
- Lorillard Tobacco Company v. Thomas F. ReillyLaw held unconstitutional
- George Duncan v. Sherman Walker
- John Paul Penry v. Gary L. Johnson
- Wilbert K. Rogers v. Tennessee
- Earthy D. Daniels, Jr. v. United States
- Lackawanna County District Attorney v. Edward R. Coss, Jr.
- James F. Lewis v. Lewis & Clark Marine, Inc., Etc.
- Mark Seling v. Andre Brigham Young
- City of Indianapolis v. James EdmondLaw held unconstitutional
- Charles B. Miller v. Richard A. French
- Roger Reeves v. Sanderson Plumbing Products, Inc.
- Jenifer Troxel v. Tommie GranvilleLaw held unconstitutional
- Norfolk Southern Railway Company v. Dedra Shanklin
- City of Erie v. Pap's A. M.
- Food and Drug Administration v. Brown & Williamson Tobacco Corporation
- Ernest C. Roe v. Lucio Flores-Ortega
- J. Daniel Kimel, Jr. v. Florida Board of RegentsLaw held unconstitutional
- Karen Sutton and Kimberly Hinton v. United Air Lines, Inc.
- Vaughn L. Murphy v. United Parcel Service
- Carole Kolstad v. American Dental Association
- Bill Martin v. Everett Hadix
- William D. O'Sullivan v. Darren Boerckel
- Aurelia Davis v. Monroe County Board of Education
- Minnesota v. Mille Lacs Band of Chippewa IndiansAltered precedent
- Department of Commerce v. United States House of Representatives
- Vicky M. Lopez v. Monterey County
- El Al Israel Airlines, Ltd. v. Tsui Yuan Tseng
- Naomi Marquez v. Screen Actors Guild, Inc.
- Angel Jaime Monge v. California
- Eastern Enterprises v. Kenneth S. ApfelLaw held unconstitutional
- National Endowment for the Arts v. Karen Finley
- Alida Star Gebser and Alida Jean McCullough v. Lago Vista Independent School District
- California and State Lands Commission v. Deep Sea Research, Inc.
- Edward S. Cohen v. Hilda de La Cruz
- South Dakota v. Yankton Sioux Tribe
- Christopher H. Lunding v. New York Tax Appeals TribunalLaw held unconstitutional
- City of Chicago v. International College of Surgeons
- State Oil Company v. Barkat U. Khan and Khan & Associates, Inc.Altered precedent
- Rachel Agostini v. Betty-Louise FeltonAltered precedent
- United States of America v. State of Alaska
- Joseph Roger O'Dell v. J. D. Netherland
- Janet Reno v. Bossier Parish School Board
- Inter-Modal Rail Employees Association v. Atchison
- Board of the County Commissioners of Bryan County v. Jill Brown
- Linda J. Blessing v. Cathy Freestone, Etc.
- United States v. Miguel Gonzales
- Ingalls Shipbuilding, Inc. v. Director
- Vicky M. Lopez v. Monterey County
- Bd. of County Comm'rs v. Umbehr
- Ray A. Lewis v. United States
- James Griffin Lane v. Federico F. Pena
- George W. Bush v. Al VeraLaw held unconstitutional
- Charles Quackenbush v. Allstate Insurance Company
- Alan Meghrig v. KFC Western, Inc.
- Commissioner of Internal Revenue v. Robert F. Lundy
- Roland J. Bailey v. United States
- Joseph Libretti v. United States
- United States v. Hays
- Florida Bar v. Went for It, Inc.
- Chandris, Inc. v. Antonios Latsis
- Steven Kurt Witte v. United States
- Adarand Constructors, Inc. v. Federico PenaAltered precedent
- Leslie Wilton, Etc. v. Seven Falls Company
- Curtiss-Wright Corporation v. Frank C. Schoonejongen
- Louise Harris v. Alabama
- Charles J. Reich v. Marcus E. CollinsLaw held unconstitutional
- United States v. Reshat Shabani
- Fredel Williamson v. United States
- Robert L. Davis v. United States
- Director v. Greenwich CollieriesAltered precedent
- Cynthia Waters v. Cheryl R. Churchill
- Pud No. 1 of Jefferson County and City of Tacoma v. Washington Department of Ecology
- Lenard Ray Beecham v. United States
- Clarence Victor v. Nebraska
- Paul Caspari v. Christopher Bohlen
- Robert Hagen v. Utah
- Thomas Schiro v. Robert Farley
- Florence County School District Four v. Shannon Carter
- Teresa Harris v. Forklift Systems, Inc.
- Ruth O. Shaw v. Janet Reno
- United States Department of Justice v. Vincent James Landano
- John Angus Smith v. United States
- Oklahoma Tax Commission v. Sac and Fox Nation
- United States v. Guy W. Olano, Jr.
- United States v. California and California State Board of Equalization
- State of Nebraska v. States of Wyoming and Colorado
- Hazen Paper Company v. Walter F. Biggins
- A. J. Arave v. Thomas E. Creech
- George Voinovich v. Barney Quilter
- Gloria Zafiro v. United States
- Al C. Parke v. Ricky Harold Raley
- Willie Lee Richmond v. Samuel A. Lewis
- Barbara Franklin v. Massachusetts
- New York v. United StatesLaw held unconstitutional
- Mary Gade v. National Solid Wastes Management Association
- David Riggins v. Nevada
- Howard Wyatt v. Bill Cole and John Robbins
- George F. Denton v. Mike Hernandez
- John K. Yee v. City of Escondido
- General Motors Corporation v. Evert Romein
- Joseph Williams v. United States
- Keith J. Hudson v. Jack McMillian
- William Lewis Smith v. Wayne S. Barry
- Simon & Schuster, Inc. v. Members of the New York State Crime Victims BoardLaw held unconstitutional
- Rafeh-Rafie Ardestani v. Immigration and Naturalization Service
- Barbara Hafer v. James C. Melo, Jr.
- Roger Keith Coleman v. Charles E. ThompsonAltered precedent
- Florida v. Bostick
- Ellis Gregory, Jr. and Anthony P. Nugent, Jr. v. John D. Ashcroft
- Zakhar Melkonyan v. Louis W. Sullivan
- Michigan v. Nolan K. Lucas
- Daniel Touby et Ux. v. United States
- County of Riverside and Cois Byrd v. McLaughlin
- Leathers v. Medlock
- Feist Publications, Inc. v. Rural Telephone Service Co., Inc.
- Business Guides, Inc. v. Chromatic Communications Enterprises, Inc. and Michael Shipp
- McDermott International, Inc. v. Jon C. Wilander
- United States v. R. Enterprises, Inc.
- Robert Lacy Parker v. Richard L. Dugger
- Ingersoll-Rand Company v. Perry McClendon
- FMC Corporation v. Cynthia Ann Holliday
- Mercedel W. Miles v. Apex Marine Corporation
- United States v. Kokinda
- Lewis v. Jeffers
- Idaho v. Wright
- Maryland v. Craig
- Cooter & Gell v. Hartmarx Corporation
- American Trucking Associations, Inc. v. Maurice Smith
- Board of Education of the Westside Community Schools, Etc. v. Bridget C. Mergens
- Davis et Ux. v. United States
- California v. Federal Energy Regulatory Commission
- Port Authority Trans-Hudson Corp. v. Feeney
- Stewart v. Abend
- Kaiser Aluminum & Chemical Corp. v. Bonjorno
- Baltimore City Department of Social Services v. Bouknight
- Tafflin v. Levitt
- Jimmy Swaggart Ministries v. Board of Equalization of California
- Fw/pbs, Inc. v. City of DallasLaw held unconstitutional
- Olaf A. Hallstrom v. Tillamook County
- Penry v. Lynaugh
- Jett v. Dallas Independent School District
- Massachusetts v. Oakes
- Sullivan v. Hudson
- Skinner v. Mid-America Pipeline Co.
- Texas State Teachers Association v. Garland Independent School District
- Coit Independence Joint Venture v. Federal Savings and Loan Insurance Corporation
- Trans World Airlines, Inc. v. Independent Federation of Flight Attendants
- Teague v. Lane
- Firestone Tire & Rubber Co. v. Bruch
- Mesa v. California
- Bonito Boats, Inc. v. Thunder Craft Boats, Inc.Law held unconstitutional
- City of Richmond v. J. A. Croson CompanyLaw held unconstitutional
- United States v. Kozminski
- Watson v. Fort Worth Bank & Trust
- Frisby v. Schultz
- Schweiker v. Chilicky
- Kadrmas v. Dickinson Public Schools
- Volkswagenwerk Aktiengesellschaft v. Schlunk
- Clark v. JeterLaw held unconstitutional
- Satterwhite v. Texas
- Chick Kam Choo v. Exxon Corp.
- Regents of the University of California v. Public Employment Relations Board
- Richard E. Lyng v. Northwest Indian Cemetery Protective Association
- Tulsa Professional Collection Services, Inc. v. Joanne PopeLaw held unconstitutional
- Michael Boos, J. Michael Waller and Bridget Brooker v. Marion S. Barry, Jr.Law held unconstitutional
- City of St. Louis v. James H. Praprotnik
- Forrester v. White
- Karcher v. May
- Tanner v. United States
- Agency Holding Corp. v. Malley-Duff & Associates, Inc.
- Board of Airport Commissioners of the City of Los Angeles v. Jews for Jesus, Inc.Law held unconstitutional
- California v. Superior Court of California
- Miller v. FloridaLaw held unconstitutional
- Utah Division of State Lands v. United States
- Shearson/american Express Inc. v. McMahon
- Turner v. Safley
- Hodel v. IrvingLaw held unconstitutional
- Tison v. Arizona
- Pilot Life Insurance Co. v. Dedeaux
- Metropolitan Life Insurance Co. v. Taylor
- O'Connor v. Ortega
- California Coastal Commission v. Granite Rock Co.
- Asahi Metal Industry Co., Ltd. v. Superior Court of California
- Western Air Lines, Inc. v. Board of Equalization of the State of South Dakota
- Wimberly v. Labor and Industrial Relations Commission of Missouri
- North Carolina Department of Transportation v. Crest Street Community Council, Inc.
- Commodity Futures Trading Commission v. Schor
- Randall v. Loftsgaarden
- Murray v. Carrier
- Smith v. Murray
- Offshore Logistics, Inc. v. Tallentire
- Three Affiliated Tribes of the Fort Berthold Reservation v. Wold Engineering, P. C.
- Lyng v. Payne
- Nantahala Power & Light Co. v. Thornburg
- Young v. Community Nutrition Institute
- Crane v. Kentucky
- Federal Deposit Insurance Corporation v. Philadelphia Gear Corp.
- Philadelphia Newspapers, Inc. v. HeppsLaw held unconstitutional
- Moran v. Burbine
- Whitley v. Albers
- New York v. Class
- Heath v. Alabama
- Miller v. Fenton
- Cornelius v. NAACP Legal Defense and Educational Fund, Inc.
- Thomas v. Union Carbide Agricultural Products Co.
- United States v. Albertini
- Richardson-Merrell Inc. v. Koller
- Superintendent v. Hill
- Maryland v. Macon
- Harper & Row v. Nation Enterprises
- Black v. Romano
- Bennett v. New Jersey
- Bennett v. Kentucky Department of Education
- Oregon v. Elstad
- Marrese v. American Academy of Orthopaedic Surgeons
- Air France v. Saks
- United States v. Johns
- Park 'n Fly, Inc. v. Dollar Park and Fly, Inc.
- United States v. Hensley
- Immigration and Naturalization Service v. Lopez-Mendoza
- Allen v. Wright
- Brown v. Hotel & Restaurant Employees & Bartenders International Union Local 54
- Sure-Tan, Inc. v. National Labor Relations Board
- Tower v. Glover
- Colorado v. New Mexico
- Block v. Community Nutrition Institute
- Hawaii Housing Authority v. Midkiff
- Arizona v. Rumsey
- Strickland v. Washington
- Trans World Airlines, Inc. v. Franklin Mint Corp.
- Flanagan v. United States
- Minnesota State Board for Community Colleges v. Knight
- McKaskle v. Wiggins
- Secretary of the Interior v. California
- Immigration and Naturalization Service v. Phinpathya
- Commissioner of Internal Revenue v. Engle et Ux.
- California v. Ramos
- Michigan v. LongAltered precedent
- Rice v. Rehner
- United States v. Place
- First National City Bank v. Banco Para El Comercio Exterior de Cuba
- Baltimore Gas & Electric Co. v. Natural Resources Defense Council, Inc.
- Bell v. New Jersey
- Bearden v. Georgia
- United States v. Eight Thousand Eight Hundred and Fifty Dollars ($ 8,850) in United States Currency
- Kolender v. LawsonLaw held unconstitutional
- Bowsher v. Merck & Co., Inc.
- Minneapolis Star & Tribune Co. v. Minnesota Commissioner of RevenueLaw held unconstitutional
- Hillsboro National Bank v. Commissioner of Internal Revenue
- South Dakota v. Neville
- Director v. Perini North River Associates
- Landon v. Plasencia
- Mississippi University for Women v. HoganLaw held unconstitutional
- Ford Motor Co. v. Equal Employment Opportunity Commission
- California v. Grace Brethren Church
- Hathorn v. Lovorn
- Tibbs v. Florida
- Inwood Laboratories, Inc. v. Ives Laboratories, Inc.
- Engle v. Isaac
- United States v. Frady
- McElroy v. United States
- Bread Political Action Committee v. Federal Election Commission
- Rose v. Lundy
- United States v. Clark
- Watt v. Energy Action Educational Foundation
Dissents in argued cases (most recent 30 of 350)
- Thomas Van Orden v. Rick Perry
- Susette Kelo v. City of New London
- Exxon Mobil Corporation v. Allapattah Services, Inc.
- Mid-Con Freight Systems, Inc. v. Michigan Public Service Commission
- Alberto R. Gonzales v. Angel McClary Raich
- Douglas Spector v. Norwegian Cruise Line Ltd.
- Jose Ernesto Medellin v. Doug Dretke
- Jennifer M. Granholm v. Eleanor HealdLaw held unconstitutional
- Reginald Shepard v. United States
- Donald P. Roper v. Christopher SimmonsAltered precedentLaw held unconstitutional
- John D. Ashcroft v. American Civil Liberties Union
- Missouri v. Patrice Seibert.
- Ralph Howard Blakely, Jr. v. WashingtonLaw held unconstitutional
- Lee M. Till v. SCS Credit Corporation
- Olympic Airways v. Rubina Husain
- Nike, Inc. v. Marc Kasky
- Green Tree Financial Corp. v. Lynn W. Bazzle
- Charles Thomas Sell v. United States
- National Park Hospitality Association v. Department of the Interior
- Pharmaceutical Research and Manufacturers of America v. Peter E. Walsh
- Beatrice Branch v. John Robert Smith
- Norfolk & Western Railway Company v. Freeman Ayers
- United States v. Navajo Nation
- Jo Anne B. Barnhart v. Peabody Coal Company
- Board of Education of Independent School District No. 92 of Pottawatomie County v. Lindsay Earls
- Timothy Stuart Ring v. ArizonaAltered precedentLaw held unconstitutional
- City of Columbus v. Ours Garage and Wrecker Service, Inc.
- Utah v. Donald L. Evans
- National Railroad Passenger Corporation v. Abner Morgan, Jr.
- John D. Ashcroft v. the Free Speech CoalitionLaw held unconstitutional
Search all opinions by Justice O'Connor
Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error