Skip to main content
John William Callahan

John William Callahan

Practice areas:

Criminal Defense, DUI & DWI

About Me

John Callahan takes the practice of law very seriously.  He gives every ounce of his work effort to defending those charged with crimes from felonies to DUI.  Very often his finds himself representing clients at the Secretary of State to reinstate their driver's license in Illinois after a DUI revocation.


John gives every client his personal cell phone for 24 hour access whenever they have questions or concerns.



Photos and Videos

1136468 1280175827

1136468 1280176125

1136468 1280176200

1136468 1280176264

Practice Areas

Licensed since 1997

  1. DUI & DWI: 50%
    18 years, 5 thousand cases
  2. Criminal Defense: 50%
    18 years, 5 thousand cases



Fixed (Always), Free Consultation (60 minutes)

Payment Types:

Cash, Check, Credit Card

Attorney Endorsements

13 total 

  • Matthew Joseph Medina

    I endorse this lawyer. I first encountered John when I was an Assistant Cook County Prosecutor. He was opposing counsel on many of my cases. John is was of the best defense attorneys I know. He is a tough-as-nails defense attorney, yet, he never alienated opposing counsel or the judge. He is well respected and that respect is well deserved.


    Matthew Medina Criminal Defense Attorney
    Relationship: Opposing Counsel on matter

  • Michael S. Waddington

    I endorse John. He is a highly skilled attorney that is well respected in the legal community.


    Michael Waddington Military Law Attorney
    Relationship: Fellow lawyer in community

Contact Info

John W. Callahan, Ltd

1701 E. Woodfield Road
Suite 1101
Schaumburg, IL, 60173-5156

John W. Callahan, Ltd.

1755 Park Street.
Suite 200
Naperville, IL, 60563

John W. Callahan, Ltd.

22 W. Washington
Suite 1500
Chicago, IL, 60602

John W. Callahan, Ltd.

1415 West 22nd Street
Tower Level
Oak Brook, IL, 60523-2074



ILActive And Authorized To Practice Law199705/14/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
Excellent RatedAVVO2013
Superb RatedAvvo2013
Top 10 Criminal Defense Attorneys in IllinoisNational Academy of Criminal Defense Attorneys2013
National Scholarship WinnerDirect Marketing Education Foundation1992
Scholarship Award WinnerJones Intercable1990

Work Experience
TitleCompany NameDuration
PresidentJohn W. Callahan, Ltd.2003 - Present
AttorneyMichael T. Norris, Ltd.1998 - 2003

Association NamePosition NameDuration
Illinois State Bar AssociationN/A2009 - Present
National Association of Criminal Defense LawyersN/A2006 - Present
Northwest Suburban Bar AssociationN/A2005 - Present
Will County Bar AssociationN/A2005 - Present
DuPage County Bar AssociationDCBA Brief Editorial Board Member 20042003 - Present
Chicago Bar AssociationN/A2003 - Present
United States District Court for the Central District of IllinoisN/A2002 - Present
Federal Trial Bar for the Northern District of IllinoisLawyer2002 - Present
United States District Court for the Northern District of IllinoisN/A2001 - Present
MENSAN/A1997 - Present

Legal Cases
Case NameOutcome
People v. T.N.Defendant not guilty of DUI
People v. J.H. - DuPage County DUI WinCLIENT FOUND NOT GUILTY
DuPage DUI VictoryNot Guilty

See all Legal Cases 

School NameMajorDegreeGraduated
DePaul University College of LawLawJD - Juris Doctor1997
University of Illinois, Urbana-ChampaignAdvertisingBS - Bachelor of Science1992

Speaking Engagements
Conference NameTitleDate
Art Institute of ChicagoConstitutional Law2005