David D. Weinzweig
Education and employment
David D. Weinzweig was appointed to the Arizona Court of Appeals in December 2017. He is an Arizona native who received his B.A. from the University of Arizona and his J.D. from Arizona State University.
Before joining the Arizona Court of Appeals, Judge Weinzweig spent his career in private practice and the public sector. He represented corporate and government clients in commercial litigation at Lewis and Roca, specializing in antitrust law, and served three Arizona Attorneys General, defending dozens of high-profile complex and constitutional lawsuits and appeals. He also practiced constitutional and commercial litigation in trial and appellate courts at Ellman Weinzweig.
Judge Weinzweig has served on rules and practice committees, including the Civil Justice Reform Committee and the Local Rules of Practice Advisory Committee of the U.S. District Court for the District of Arizona. He also helped build and thrice chaired a popular awards program to honor local attorneys for community and public service. He formerly served on the Arizona Commission of Judicial Performance Review and the Judicial Selection Advisory Committee of the City of Phoenix.
Judge Weinzweig teaches legal and persuasive writing to state and federal judges, law clerks and practicing lawyers at judicial colleges, bar associations and law schools nationwide. His book, Zen and the Art of Persuasive Writing, was released in January 2026 by the American Bar Association. He has authored and co-authored full chapters in authoritative treatises on antitrust law, corporate in-house legal practices and consumer protection.
Judicial record
991 opinions where David D. Weinzweig sat on the panel, spanning 2018–2026.
By court
By disposition
Panel votes per year
How David D. Weinzweig's panel-seat count has shifted year by year.
Add ?vs=<another-judge-slug> to the URL to overlay a second judge, or click compare next to any co-panelist below.
- David D. Weinzweig
Most-frequent co-panelists
Judges who appeared on the same opinions, ranked by overlap count. Click compare to overlay them on the chart above.
- Jennifer M. Perkins 252 shared compare
- D. Steven Williams 130 shared compare
- Michael J. Brown 123 shared compare
- Peter B. Swann 120 shared compare
- Randall M. Howe 113 shared compare
- Brian Y. Furuya 109 shared compare
- Paul J. McMurdie 108 shared compare
- David B. Gass 94 shared compare
- Samuel Anderson Thumma 94 shared compare
- Michael S. Catlett 84 shared compare
Recent opinions
15 most recent opinions where David D. Weinzweig sat on the panel.
| Docket | Court | Filed | Disposition | Case |
|---|---|---|---|---|
| 1 CA-CR 25-0096 | Ariz. Ct. App. Div. 1 | 2026-07-16 | Affirmed | State v. Drouillard |
| 1 CA-CV 25-0140 FC | Ariz. Ct. App. Div. 1 | 2026-07-14 | Affirmed in part; vacated and remanded in part | Trembath v. Trembath |
| 1 CA-CV 25-0510 FC | Ariz. Ct. App. Div. 1 | 2026-06-17 | Vacated | Gregorwicz v. Villa-Kennedy |
| 1 CA-CR 24-0594 | Ariz. Ct. App. Div. 1 | 2026-06-12 | Vacated and remanded | State v. Castleberry |
| 1 CA-CV 25-0696 FC | Ariz. Ct. App. Div. 1 | 2026-03-23 | Affirmed | Smith v. Smith |
| 1 CA-CV 25-0397 PB | Ariz. Ct. App. Div. 1 | 2026-03-20 | Affirmed | DONOVAN v. DONOVAN |
| 1 CA-CR 24-0046 | Ariz. Ct. App. Div. 1 | 2026-03-19 | Affirmed | State v. Rix |
| 1 CA-JV 25-0117 | Ariz. Ct. App. Div. 1 | 2026-03-12 | Affirmed | In Re Term of Parental Rights as to A.S. |
| 1 CA-CR 24-0263 | Ariz. Ct. App. Div. 1 | 2026-03-06 | Affirmed | State v. Thomas |
| 1 CA-JV 25-0138 | Ariz. Ct. App. Div. 1 | 2026-03-06 | Vacated and remanded | In Re Term of Parental Rights as to M.M. |
| 1 CA-CV 25-0387 PB | Ariz. Ct. App. Div. 1 | 2026-03-06 | Affirmed in part, reversed in part, remanded | CHAMPAGNE v. BOZER |
| 1 CA-CV 25-0491 PB | Ariz. Ct. App. Div. 1 | 2026-03-05 | Dismissed | Kuerschner v. Kuerschner |
| 1 CA-CR 25-0231 PRPC | Ariz. Ct. App. Div. 1 | 2026-03-02 | Denied | State v. Triste |
| 1 CA-CR 25-0295 PRPC | Ariz. Ct. App. Div. 1 | 2026-03-02 | Denied | State v. Davis |
| 1 CA-CV 24-0658 | Ariz. Ct. App. Div. 1 | 2026-02-27 | Affirmed | ASSOCIATED v. CITY OF PHOENIX |