• Bio
  • Credentials
  • Memberships
  • Community Involvement

John J. Tenn


John J. Tenn is a founding member and senior trial lawyer of Tenn And Tenn, P.A. John’s practice areas include personal injury, auto and motorcycle accidents, criminal defense, and DWI/DUI matters in New Hampshire.

John is a member of the Multi-Million Dollar Advocates Forum and the Million Dollar Advocates Forum, a prestigious honor only held for those who have won million and multi-million dollar verdicts and settlements. John has been designated in Super Lawyers as an outstanding top-rated attorney in his field through superior client and peer ratings. John is also an active member of the New Hampshire Association of Criminal Defense Lawyers.

John is admitted to practice in all state and federal courts in New Hampshire and Massachusetts. He also is admitted to practice in the United States Supreme Court. John is an active member of the National College of DUI Defense. John is a NHSA/IACP Standardized Field Sobriety Testing Instructor. John holds certification as an Evidentiary Breath Alcohol Technician/Initializer Instrument. In addition, John has substantial experience with chromatography analysis having attended the world Famous Axion Laboratory training under Doctor Harold McNeer.

John is an active member of the American Bar Association, and the New Hampshire and Manchester Bar Associations.

John received his J.D. from the Catholic University of America, Columbus School of Law in 1992. He graduated from Boston University with a Bachelor of Science in Business Administration.

John also serves as a judge for the Harvard Law School First-Year Moot Court Program.

A lifelong resident of New Hampshire, John attended Manchester Central High School. Among his many community activities, John is a graduate of the Greater Manchester Chamber of Commerce Leadership Program. John is a founding member of the Law Enforcement Appreciation Committee, and participates in the Lawyer in Every School program. He is an avid motorcyclist and advocate for motorcycle safety. John is a former Police Commissioner who served the citizens of the City of Manchester, NH for six (^) years. John is also a former Board Member of the Manchester Crimeline.



  • J.D., Doctor of Jurisprudence, Catholic University of America, Columbus School of Law, Washington, District of Columbia, 1992
  • Bachelor of Science, Boston University, Boston, Massachusetts, 1989

Jurisdictions Admitted to Practice

  • New Hampshire, 1992
  • U.S. Supreme Court, 1999
  • Massachusetts, 2003

Professional & Bar Association Memberships

  • American Bar Association
  • Association of Trial Lawyers of America
  • Board Member Campaign for Legal Services
  • Campaign for Legal Services
  • Catholic Lawyer’s Guild of New Hampshire
  • Daniel Webster American Inn of Court
  • Manchester Bar Association
  • Massachusetts State Bar
  • Million Dollar Advocates Forum
  • Multi-Million Dollar Advocates Forum
  • National Association of Criminal Defense Lawyers
  • National College DUI Defense
  • Nationals Association of Criminal Defense Lawyers
  • New Hampshire Association of Criminal Defense Lawyers
  • New Hampshire Bar Association
  • NH Superior Court (Rule 170) Mediator
  • Thurgood Marshall American Inn of Court


  • Phi Alpha Delta

Community Involvement

  • Manchester Police Commission
    Former Commissioner
  • Manchester School District Law Enforcement Appreciation Committee
    Former Board Member
  • Manchester Chamber of Commerce Leadership Program
  • Manchester Consolidated Services, Inc.
    Former Director
  • Manchester Crime Line
    Board Member
  • Lawyer In Every School Program
  • New Hampshire Law Line
Why Choose Tenn And Tenn Let Our Family Help Your Family
  • A Family Firm

    We are a family committed to providing excellent service to our clients.

  • Statewide Service
    We work hard to obtain the best results possible for clients throughout New Hampshire.
  • Trial-Tested Attorneys
    Our lawyers are experienced courtroom advocates who are ready to take your case to trial to obtain justice.
Free Injury Consultations Available Contact Us Today

Whether you have questions or you’re ready to get started, our award-winning legal team is ready to help. Complete our form below or call us at (888) 332-5855.

  • Please enter your first name.
  • Please enter your last name.
  • Please enter your phone number.
    This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please make a selection.
  • Please enter a message.

Please do not include any confidential or sensitive information in a contact form, text message, or voicemail. The contact form sends information by non-encrypted email, which is not secure. Submitting a contact form, sending a text message, making a phone call, or leaving a voicemail does not create an attorney-client relationship.