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John R. DeLeon

Attorney at Law

About John DeLeon

A prominent Chicago defense attorney for over 40 years, attorney John DeLeon provides expert counsel and criminal defense services. Attorney DeLeon holds a Bachelor of Arts in Criminal Justice from the University of Illinois at Chicago and a Juris Doctorate from DePaul University College of Law.

John DeLeon has extensive experience providing criminal defense not only throughout the Chicago area but in 13 different states from California to Florida, as well as international cases in Mexico and Spain.

"I have over 40 years of experience helping people fight their criminal charges, and I will be in your corner to defend you."

Attorney DeLeon was voted one of the Top 100 Trial Lawyers in America by the American Trial Lawyers Association in 2009, 2010, and 2011 and given the Thomson Reuters annual “Illinois Super Lawyers” award for 15 years and most recently in 2020. He is a Member of the West Suburban Bar Association, Hispanic Lawyers Association of Illinois, and National Association of Criminal Defense Lawyers.

Learn more about the case results Attorney DeLeon has won and how this Illinois criminal defense lawyer can assist you with any of your legal needs by scheduling a 30-minute consultation.

To schedule yours, call (312) 728-3449 today.

Bar Admissions

  • State Bar of Illinois — 1977

  • US District Court, Central District of Illinois — 1977

  • US District Court, Northern District of Illinois — 1978

  • US Court of Appeals, Seventh Circuit — 1991

    • Wisconsin, Indiana, and Illinois

  • US Court of Appeals, Fifth Circuit — 2003

    • Texas, Louisiana, and Mississippi

  • US District Court, Northern District of Indiana — 2007

  • US District Court, Southern District of Texas — 2010

  • Supreme Court of the United States of America — 2016

Professional Associations

  • Illinois State Bar Association

  • West Suburban Bar Association

  • Hispanic Lawyers Association of Illinois

  • National Association of Criminal Defense Lawyers


  • Top 100 Trial Lawyers in America — American Trial Lawyers Association, 2009-2011

  • Illinois Super Lawyers Award — Thomson Reuters, 2005-2015, 2020


  • J.D. — DePaul University College of Law, 1977

  • B.A. — University of Illinois at Chicago, 1974