CaseTrail

Justice William O. Douglas

Voting and opinion record for William O. Douglas in the Supreme Court Database, covering the 1946 through 1975 Terms (data begins with the 1946 Term).

3,839decisions participated in
71%in the majority
1,083dissenting votes
368majority opinions written

Court eras served in this data: Vinson Court, Warren Court, Burger Court.

Majority opinions by issue area

Most often on the same side

JusticeSame sideCases together
Abe Fortas82.2%527
Earl Warren82.1%2,102
Arthur J. Goldberg81.7%443
William J. Brennan Jr.80.7%2,768
Thurgood Marshall79.8%1,133

Least often on the same side

JusticeSame sideCases together
William H. Rehnquist43.2%570
Warren E. Burger49.1%918
John M. Harlan II52.1%2,224
Charles E. Whittaker52.2%640
Harry A. Blackmun53.0%787

“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 (368)

Dissents in argued cases (most recent 30 of 989)

Search all opinions by Justice Douglas

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