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About me

John H. Rion is a member of a three-generation law firm in Dayton, Ohio. He is board certified in the field of criminal law, and he has been continuously listed in the Best Lawyers in America since 1983. He is the former president of the Ohio Association of Criminal Defense Lawyers.

He has served for two terms as chairman of the Criminal Justice Committee of the Ohio State Bar Association. Mr. Rion has tried more than 300 felony jury trials, including capital cases. He frequently lectures at seminars for lawyers on the subject of constitutional law. Mr. Rion is a Fellow in, and on the Board of Governors of, the American Board of Criminal Lawyers. Mr. Rion has practiced in twenty-eight (28) states.


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Practice areas


  1. Divorce & Separation: 30%
    2 years
  2. Federal Crime: 30%
    2 years
  3. Criminal Defense: 30%
    2 years
  4. Appeals: 10%
    2 years



Free consultation (60 minutes)

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Attorney endorsements

1 total 

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  • Michael S. Waddington

    I highly endorse John Rion. He is one of the top criminal defense lawyers in the nation.


    Michael Waddington Military Law Attorney
    Relationship: Worked together on matter

Contact info

Rion, Rion & Rion, Co. L.P.A.

130 W. 2nd St., Ste 2150
PO Box 10126
Dayton, OH, 45402


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Superstar '12OACDL2012
Top 100 Trial Lawyers in AmericaAmerican Trial Lawyers Association2012
Top 100 Trial Lawyers in AmericaAmerican Trial Lawyers Association2011
Top 100 Trial Lawyers in AmericaAmerican Trial Lawyers Association2010
Top 100 Trial Lawyers in AmericaAmerican Trial Lawyers Association2009
Criminal Trial AdvocacyNational Board of Trial Advocacy1988
The Best Lawyers in AmericaThe Best Lawyers in America1983
Association namePosition nameDuration
Ohio State Bar AssociationPast ChairmanN/A
American Trial Lawyers AssociationMemberN/A
Legal cases
Case nameOutcome
Road RageDismissed
See all legal cases 
School nameMajorDegreeGraduated
University of Toledo College of LawLawJD - Juris Doctor1969
Speaking engagements
Conference nameTitleDate
'The Trial' Techniques from the TopVisions and Visionaries2012