Atty. Andrew A. O'Brien

Atty. Andrew A. O'Brien

Andrew A. O'Brien is a lawyer practicing asbestos and mesothelioma litigation, personal injury litigation, civil practice and 3 other areas of law.

St. Louis St. Louis 36 yrs experience 36 year
Call (314) 899-5830 Book Appointment

Profile Summary

About Andrew A. O'Brien at a glance

Andrew A. O'Brien is a Senior Partner based in St. Louis, Missouri, practicing at O'Brien Law Firm, P.C.. They have 36+ years of legal experience, licensed to practice since 1990. Their practice focuses on personal injury and litigation. Admitted to practice in Ireland (1990), Missouri (1994), U.S. District Court, Eastern District of Missouri (1994), and Illinois (1995). Educated at Incorporated Law Society of Ireland (Solr., 1989) and National University of Ireland (B.C.L. St., 1986). Recognitions include AV Preeminent. Active member of The Bar Association of Metropolitan St and Louis The Missouri Bar Illinois State Bar Association Missouri Association of Trial Attorneys American Association for Justice. Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Andrew A. O'Brien is a lawyer practicing asbestos and mesothelioma litigation, personal injury litigation, civil practice and 3 other areas of law
  • Andrew received a degree from Incorporated Law Society of Ireland in 1989, and has been licensed for 36 years
  • Andrew practices at O'Brien Law Firm, P.C. in St. Louis, MO

Practice Areas Explained

Andrew A. O'Brien's Areas of Practice

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

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Andrew A. O'Brien is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Missouri →

Civil Litigation

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

Andrew A. O'Brien is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Missouri →

Jurisdictional Context

Why local counsel matters in Missouri

Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in St. Louis are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri 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 Missouri courts without local counsel or pro hac vice admission.

Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about Andrew A. O'Brien

Where is Andrew A. O'Brien's law office located?
Andrew A. O'Brien's law practice is located in St. Louis, Missouri. The firm is O'Brien Law Firm, P.C.. You can contact the office directly through this profile page.
What practice areas does Andrew A. O'Brien handle?
Andrew A. O'Brien focuses on personal injury, litigation. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Andrew A. O'Brien practiced law?
Andrew A. O'Brien has 36+ years of legal experience and has been licensed since 1990.
Where did Andrew A. O'Brien go to law school?
Andrew A. O'Brien earned their education at (Solr., 1989); (B.C.L. St., 1986).
How can I contact Andrew A. O'Brien for a consultation?
You can contact Andrew A. O'Brien 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.
What awards or recognition has Andrew A. O'Brien received?
Andrew A. O'Brien's notable recognition includes: AV Preeminent.

Education

Solr.
Incorporated Law Society of Ireland
- 1989
B.C.L. St.
National University of Ireland
- 1986

Awards

AV Preeminent

Bar Admissions

Ireland
Admitted: 1990
Missouri
Admitted: 1994
U.S. District Court, Eastern District of Missouri
Admitted: 1994
Illinois
Admitted: 1995

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