Skip to main content

About me

Certified Specialist in Criminal Law, California Board of Legal Specialization, since 1977

John D. Cahners is a State Bar Certified Specialist in Criminal Law, is a former senior prosecutor with the Santa Clara County District Attorney’s Office. He has been defending clients charged with crimes since 1980.

Mr. Cahners has successfully defended clients charged with a broad range of criminal charges, from DUI to Homicide Because of the new trend in prosecutions, he has become an expert in handling  domestic violence cases, and has devoted a substantial percentage of his practice to that area.

Mr. Cahners has been AV peer review rated by Martindale-Hubbell and was recognized by San Francisco Magazine and Super Lawyers Magazine in their 2006 & 2007 editions as a Super Lawyer. He is considered by them to be in the top five percent of all attorneys in Northern California.

Born: July 2, 1943, in Boston, Massachusetts

John D. Cahners in the News


Photos and videos

134091 1292267537

Practice areas


  1. White Collar Crime: 25%
  2. Domestic Violence: 25%
  3. Criminal Defense: 25%
  4. DUI & DWI: 25%

Attorney endorsements

5 total 

Are you an attorney? Endorse this lawyer

  • Katrina Margaret Saleen

    John Cahners is a skilled and dedicated criminal defense attorney. I would receommend his services to anyone in need of an outstanding defense attorney. He really knows his stuff. I endorse this lawyer.


    Katrina Saleen Sexual harassment Attorney
    Relationship: Fellow lawyer in community

  • Javier Demetrio Rios

    I endorse this lawyer.


    Javier Rios Criminal defense Attorney
    Relationship: Fellow lawyer in community

Contact info

Cahners & Samuels

2600 El Camino Real Suite 506
Palo Alto, CA, 94306-1718


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2016
SuperlawyerSan Francisco Magazine and Law & Politics Magazine2010
Super LawyerSan Francisco Magazine2007
RecognitionSuper Lawyers2007
Certified Specialist Criminal Law 30 YearsState Bar of California Board of Specialization2007
Super LawyerSan Francisco Magazine2006
RecognitionSuper Lawyers2006
Work experience
TitleCompany nameDuration
PartnerCahners & Samuels1980 - Present
Senior Deputy D.A.Santa Clara County District Attorney's Office1971 - 1980
Association namePosition nameDuration
California Attorneys for Criminal JusticeN/A1995 - Present
Santa Clara County Bar AssociationN/A1980 - Present
State Bar of CaliforniaMemberN/A
School nameMajorDegreeGraduated
University of California, Hastings College of the LawLawJD - Juris Doctor1967
Stanford UniversityN/ABA - Bachelor of Arts1964