Atty. Patrick A. O'Byrne

Atty. Patrick A. O'Byrne

Patrick A. O'Byrne is a lawyer practicing trial practice, criminal law, criminal defense.

Park Ridge Park Ridge 44 yrs experience 44 year
Call (224) 801-5565 Book Appointment

Profile Summary

About Patrick A. O'Byrne at a glance

Patrick A. O'Byrne is a criminal defense and litigation attorney based in Park Ridge, Illinois. They have 44+ years of legal experience, licensed to practice since 1982. Admitted to practice in Illinois (1982). Educated at John Marshall Law School J.D. (—) and Northeastern Illinois University B.A (—). Serands clients in Park Ridge, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Patrick A. O'Byrne is a lawyer practicing trial practice, criminal law, criminal defense
  • Patrick received a degree from Northeastern Illinois University, and has been licensed for 44 years
  • Patrick practices in Park Ridge, IL

Practice Areas Explained

Patrick A. O'Byrne's Areas of Practice

Each practice area below reflects the types of cases Patrick A. O'Byrne handles, with a brief overview of what that area of law covers.

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Patrick A. O'Byrne is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Illinois →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Patrick A. O'Byrne is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →

Jurisdictional Context

Why local counsel matters in Illinois

Practicing law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Park Ridge are typically filed in the local municipal court or the appropriate Illinois state district court, depending on subject matter and amount in controversy. An attorney licensed in Illinois brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Illinois courts without local counsel or pro hac vice admission.

Looking for additional Illinois attorneys? Browse all attorneys in Park Ridge or all attorneys in Illinois.

Frequently Asked

Common questions about Patrick A. O'Byrne

Where is Patrick A. O'Byrne's law office located?
Patrick A. O'Byrne's law practice is located in Park Ridge, Illinois. You can contact the office directly through this profile page.
What practice areas does Patrick A. O'Byrne handle?
Patrick A. O'Byrne focuses on criminal defense, litigation. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Patrick A. O'Byrne practiced law?
Patrick A. O'Byrne has 44+ years of legal experience and has been licensed since 1982.
Where did Patrick A. O'Byrne go to law school?
Patrick A. O'Byrne earned their education at (—); (—).
How can I contact Patrick A. O'Byrne for a consultation?
You can contact Patrick A. O'Byrne directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

John Marshall Law School J.D.
- In Progress
Northeastern Illinois University B.A
- In Progress

Bar Admissions

Illinois
Admitted: 1982

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