CaseTrail

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

JusticeSame sideCases together
Warren E. Burger88.3%819
William H. Rehnquist86.1%2,808
Anthony M. Kennedy85.2%1,786
Lewis F. Powell Jr.84.9%920
Antonin Scalia81.6%2,019

Least often on the same side

JusticeSame sideCases together
Thurgood Marshall55.1%1,511
William J. Brennan Jr.58.2%1,398
John Paul Stevens66.0%2,833
Harry A. Blackmun69.0%1,859
Ruth Bader Ginsburg74.5%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)

Dissents in argued cases (most recent 30 of 350)

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