O 25 cases
O'Connor-Ratcliff v. Garnier
2023-2024
OBB Personenverkehr AG v. Sachs
2015-2016
Obergefell v. Hodges
2014-2015
Ocasio v. United States
2015-2016
Octane Fitness v. ICON Health & Fitness
2013-2014
Ogden v. Saunders
1826-1827
Ohio v. American Express Co.
2017-2018
Ohio v. Clark
2014-2015
Ohio v. Environmental Protection Agency
2023-2024
Ohio v. Roberts
1979-1980
Oklahoma v. Castro-Huerta
2021-2022
Olivier v. City of Brandon, Mississippi
2025-2026
Olmstead v. L. C.
1998-1999
Olmstead v. United States
1927-1928
Opati v. Republic of Sudan
2019-2020
Oregon v. Elstad
1984-1985
Oregon v. Ice
2008-2009
Oregon v. Mitchell
1970-1971
Ortiz v. United States
2017-2018