Illinois Supreme Court / Joined 2022 / Active
Mary K. O'Brien
Justice, Illinois Supreme Court
Mary K. O'Brien is a Justice of the Illinois Supreme Court, serving since 2022. Sources ↓
- Tenure
- Since 2022 · 4 yrs
Judicial service
| Year | Court | Appointed by | Vote |
|---|---|---|---|
| 2022 | Illinois Supreme Court | – | – |
Questions & answers
- How do judges of the Illinois Supreme Court reach the bench?
- The court's current selection method is partisan election.
- Which court is Mary K. O'Brien on?
- Mary K. O'Brien is a Justice of the Illinois Supreme Court.
Sources
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4 years on the Illinois Supreme Court. Data as of 2026-07-02. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).