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Thomas James Diehl
also known as Tom Diehl, Thomas J. Diehl
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About Thomas
Biography
Thomas J. Diehl, grew up in Centerville, Ohio, graduated from Centerville High School in 1981 and pursued higher education at Miami University in Oxford, Ohio earning a Bachelor of Science in Business Administration in 1985. He obtained his Juris Doctorate from the University of Cincinnati College of Law in 1988 and has been licensed to practice law in Ohio and the U.S. District Court, Southern District of Ohio, since then. Shortly after, Tom started in private practice with his main office in Lebanon, Ohio and has been there for the past three decades.
Mr. Diehl has represented thousands of clients in personal injury claims, securing over $50 million on their behalf. He has led over 30 jury trials, including cases featured on national platforms like ABC's 20/20 and NPR. His legal expertise is reflected in published cases such as Burnell v. Dulle and Togo International, Inc. v. Mound Steel Corp.
A former acting judge in Warren County Court, Mr. Diehl is deeply involved in legal associations and is a past Treasurer and President of the Warren County Bar Association. He is honored to be a Fellow of the Litigation Counsel of America, an invitation-only trial lawyer society recognizing less than 0.5% of attorneys nationwide. He is also a member of the Million Dollar Advocate Forum, a group limited to attorneys who have secured million and multi-million dollar verdicts and settlements, has been recognized as one of Ohio’s Top 100 Trial Lawyers by the National Trial Lawyers Association and was featured in the February 26, 2025 edition of The Wall Street Journal as one of the "Most Influential Lawyers in 2025" according to Lawyers of Distinction. His firm, Diehl Law, holds a Preeminent rating from Martindale-Hubbell.
Tom limits the number of cases he takes so that each of his clients receives focused, personal attention. He shares his personal cell phone number with clients and is readily available for questions or meetings.
I help seriously injured people get the compensation they deserve and have done this for over 2,000 clients. There is never a fee unless we win.
Practice Areas
6
Practice Areas
Car Accident
50%
Personal Injury
25%
37 years | 2,000 cases
Trucking Accident
10%
Animal and Dog Bites
5%
Fees and Rates
Cost
Contingency
33%-40%
Payment Methods
- Cash
- Check
- Credit Card
Awards
Licenses
Licensed in Ohio for 37 years
State: Ohio
Acquired: 1988
No misconduct found
Location
Diehl Law LLC
(513) 932-2121
Fax
(513) 932-3355
Fax
304 E Warren St, Lebanon, OH, 45036
diehlhubbell.com/Gallery
Online Presence
Other places you can find Thomas online.
Thomas James Diehl's Reviews
Avvo Review Score
5 Client Reviews
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Practice Areas
What Clients Mention
Showing 1 - 1 of 1 review | Communication Style
Posted by Steven | May 20, 2025 | Hired Attorney | Personal Injury
Excellent Service
I've used Tom for several years on PI referrals. He does great work and keeps me and the client well informed.
Thomas James Diehl's Lawyer Endorsements
"Tom Diehl is one of the leaders of the legal community in Southwest Ohio. His experience and proficiency in personal injury matters are invaluable assets to his clients. I have no reservations in endorsing Tom Diehl."
"I endorse this lawyer. Mr. Diehl is well respected in the local area as a leader in personal injury law."
"I endorse this lawyer."
"I endorse this lawyer."
"I endorse this lawyer."
"I endorse this lawyer."
"Tom is a leader in the personal injury field and if I ever have a question regarding any issues he always has an answer and is always willing to help."
"I endorse this lawyer."
"I endorse this lawyer."
"I highly recommend Tom! He is an awesome attorney. His experience and knowledge in the realm of personal injury law is virtually unmatched."
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Experience
Honors
2026
Distinguished, Martindale-Hubbell
2026
Excellence in Personal Injury Law, Lawyers of Distinction
2025
Top 100 Trial Lawyers, National Trial Lawyers
2025
Most Influential Lawyers of 2025, Lawyers of Distinction
2024
Top 100 Trial Lawyers, National Trial Lawyers
2023
Top 100 Trial Lawyers, National Trial Lawyers
2022
Top 100 Trial Lawyers, National Trial Lawyers
2021
Top 100 Personal Injury Attorneys Ohio, America's Top 100 Attorneys
2021
Top 100 Trial Lawyers, National Trial Lawyers
2018
Top 100 Civil Plaintiff Lawyers, National Trial Lawyers
2005
Life Member, Million Dollar Advocates Forum
2004
Community Service, Lebanon Chamber
2001
Fellow, Litigation Counsel of America
Work Experience
1988 - Present
Partner, Diehl & Hubbell, LLC
2001 - 2006
Acting Judge, Warren County Court
1988 - 2011
Owner, Thomas J. Diehl & Company
Associations
2010 - Present
National Trial Lawyers AssociationMember
2010 - Present
National Trial LawyersAffiliate Member
2005 - Present
Million Dollar Advocates ForumLifetime Member
2001 - Present
Litigation Counsel of AmericaFellow
1998 - Present
Ohio Association for JusticeAssociate Member
1989 - Present
Warren County Bar AssociationMember
1989 - Present
Cincinnati Bar AssociationMember
1987 - Present
Ohio State Bar AssociationAssociate Member
2018 - 2019
Warren County Bar AssociationPresident
1989 - 1995
American Bar AssociationMember
Sample of Legal Cases
Divorce
Favorable to Client
Civil Appeal
Verdict adverse to client reversed and remanded
Traffic Injury
successful for client
Serious Auto Accident
favorable settlement
Motion to Modify Support
successful outcome for client
Civil Rights
settlement
Domestic Violence
Not Guilty
motorcycle accident
settlement favorable to client
trucking accident
settlement in client's favor
Car Accident
settlement/verdict
Dissolution
Granted
Civil Rights
in progress
Negligent Driver
settlement up to policy limits
Manslaughter
Not Guilty
Brain Injury
settlement
Dog Bite
Wrongful Death
settlement
Education
1988
University of Cincinnati
JD - Juris Doctor
1985
Miami University of Ohio
BS - Bachelor of Science
Speaking Engagements
2011
25under25
Small Firm Work/Life Balance
2010
UC Law Round Table
Small Firm Trends
2006
Diehl & Hubbell Gala
Hiring an Injury Lawyer
N/A
Lunch and Learn
Robinson v. Bates
N/A
CLE
Subrogation in Personal Injury
Publications
2014
TJD Publications
Injury Newsletter
2014
Wordpress
Car Accident FAQ
2013
TJD Publications
Thomas J. Diehl Newsletter
2013
Accident and Injury Reporter
Ohio Case Law Analysis - Angel v. Reed
2011
7 Big Mistakes To Avoid
Your Ohio Motor Vehicle Accident Claim
N/A
TJD Publications
Personal Injury Co-Counsel Reporter
Languages
English
Activity
Legal Answers