Licensed for 39 years

Criminal defense Lawyer at Rockville, CT
Practice Areas: Criminal Defense, DUI & DWI, Sex Crime ... +4 more

About John

Biography

An Experienced Connecticut Defense Attorney at Law and Retired Army Officer

When you enlist the help of Attorney John F. O'Brien, you'll receive dependable legal representation from a knowledgeable attorney with a history of success.

I have over 35 years of experience as an effective criminal and DUI defense lawyer. I proudly represent clients across Connecticut, especially in Hartford, New Britain, Manchester, Rockville, and Torrington. We also do jail and home visits.

If you’re in need of a criminal defense lawyer, DUI attorney, trial lawyer, or personal injury lawyer, contact me today. I’d be happy to discuss your case with you.

I am available to handle your legal emergencies 24 hours a day, seven days a week. If you or your loved one is arrested for a DUI or needs a criminal defense attorney, I can help. Call me today and get the representation you need and deserve. I promise to fight for your rights.

I promise you straight answers you can understand, practical advice you can follow, honest fees you can afford, and aggressive representation you can count on.

Our Legal Services
Arraignments and bail reductions
Attempt and conspiracy cases
Computer crimes
Domestic violence cases
Drug abuse and sale cases
DUI/DWI cases at court and the DMV
Firearms and explosives cases
Larceny and fraud cases
Sex misconduct cases
All motor vehicle violations
Pre-arrest services
Sentence reduction proceedings
Criminal appeals and pardons
Probation violations
Affordable, Convenient Legal Representation
24/7 emergency service, including nights and weekends
Free consultations and advice
Fair fees and payment plans
Special “Pay as You Go” fee plans
Special rates for first offenders, students, veterans, and union members
Free Legal Consultations and Advice

24/7 Service — Available Nights and Weekends

Special Rates for First Offenders, Students, Veterans, and Union Members

10% Legal Discount
10% Discount for Veterans, Students, and Pre-Payment Clients When You Mention Promo Code “10 OFF“

Practice Areas

7

Practice Areas

Criminal Defense 40%

40 years

40%

DUI and DWI 20%

40 years

20%

Sex Crime 15%

15%

Drug Crime 10%

10%

Cannabis Law 5%

5%

Juvenile Law 5%

5%

Speeding and Traffic Ticket 5%

5%

Fees and Rates

We have not found any cost information for this lawyer

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Licenses

Licensed in Connecticut for 39 years

State: Connecticut

Acquired: 1986

Active

Lawyer disciplined by state licensing authority in 2025

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Location

John F. O'Brien

15 Park Street, Rockville, CT, 06066

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John F. O'Brien's Reviews

Avvo Review Score

4.4 /5.0

7 Client Reviews

Showing 1 - 2 of 2 reviews | General Knowledge

Posted by anonymous | June 04, 2021

Quality lawyer with his clients' best interest in mind

Extremely nice, friendly, and helpful! I consulted with Attorney O'Brien over a legal matter. He met with me for close to an hour. Although he quoted a reasonable price if I needed to hire him, he provided me with all the information I needed to take care of my legal issues on my own successfully. I... would highly recommend that anyone facing legal issues consult and consider hiring him for representation.

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Posted by anonymous | January 18, 2018

Guidance

We needed guidance re next steps for a legal matter of great concern to us. I called the office and spoke to Jen. We wanted to make an appointment with Attorney John O'Brien; however, his schedule was booked that day. Instead of having us come to his office, he called us and we had a conference call.... He went out of his way to provide next steps, a call which took over a half hour of his time. He said there was no charge and wished us the best. His guidance was right on and greatly appreciated! Thank you John! And thank you Jen for your support as well!

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John F. O'Brien's Lawyer Endorsements

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Experience

Rating: 3.2 (Caution)

Professional misconduct

This lawyer was disciplined by a state licensing authority in 2025.

Conditions issued in CT, 2025

updated on 11/11/2025

A condition is a disciplinary order from the Statewide Grievance Committee that an attorney fulfill a condition within a certain time frame. If the attorney does not fulfill a condition in a timely manner, the Superior Court may also impose any condition necessary to protect the public.

Conditions issued in CT, 2023

updated on 10/03/2023

A condition is a disciplinary order from the Statewide Grievance Committee that an attorney fulfill a condition within a certain time frame. If the attorney does not fulfill a condition in a timely manner, the Superior Court may also impose any condition necessary to protect the public.

Reprimand issued in CT, 2005

updated on 02/03/2009

A reprimand is an order from the Statewide Grievance Committee after it has found that an attorney has engaged in ethical misconduct. If an attorney receives more than 3 reprimands in 5 years, a presentment must be filed against the attorney so the Superior Court can decide if more serious discipline should be ordered.

Conditions issued in CT, 2003

updated on 09/19/2014

A condition is a disciplinary order from the Statewide Grievance Committee that an attorney fulfill a condition within a certain time frame. If the attorney does not fulfill a condition in a timely manner, the Superior Court may also impose any condition necessary to protect the public.