Foley & Mansfield
Foley & Mansfield

Ashleigh N. Johnson

Partner - St. Louis


Bar Admissions: Illinois; Missouri; U.S. District Court, Southern District of Illinois;U.S. District Court, Eastern District of Missouri

Practice Groups: Toxic Tort / Mass Tort; Employment Law & Litigation; Cannabis

Education: St. Louis University School of Law, 2007, JD; University of Illinois, Champaign, 2004, BA, English and Rhetoric

Memberships: American Bar Association; Bar Association of Metropolitan St. Louis; Illinois State Bar Association; Missouri Bar Association; The Claims and Litigation Management Alliance (CLM)


Ashleigh Johnson is a partner in Foley & Mansfield’s St. Louis office. She practices in toxic and mass tort defense, with an emphasis on asbestos litigation, in addition to employment law and litigation.

Ashleigh also has a background in litigation relating to fiduciary breaches and prohibited transactions under ERISA, specific to 401(k) plan formation, plan document adherence, and fiduciary responsibilities relating to investment fund selection and management, and has participated in FINRA arbitration cases. Additionally, she has worked on sexual harassment and wrongful termination cases.

Ashleigh received her Juris Doctorate in 2007 from the Saint Louis University School of Law. While there, she interned at the United States Attorney’s Office for the Southern District of Illinois and received her mediation certification. Additionally, she received the Dean’s Scholarship and was the recipient of a Public Interest Law Group Fellowship. She also served as an Ambassador to Potential New Faculty, a Teaching Assistant for Family Law, and worked as a Faculty Fellow for the Head of the Employment Law Center, conducting research on employment law related issues, including the use of arbitration clauses in employment contracts.

Within the firm, Ashleigh serves as the St. Louis partner coordinator for continuing legal education programs, and as the representative to the firm's mentoring committee, mentoring younger attorneys and sharing best practices across the firm.

Ashleigh volunteers her time with the American Lung Association and is the past chair of the Volunteer Leadership Council for the American Lung Association in St. Louis. She has previously volunteered as a Relay for Life Team Captain for the American Cancer Society and participated in the Walk to Defeat ALS.

Ashleigh is the owner of two rescue cats, Ziggy and Dinah. 


January 8, 2018
Foley & Mansfield Names New Equity Partners, Additions to Partnership

Foley & Mansfield is pleased to announce the election of seven partners to the Firm’s Equity Partnership, and the addition of eight attorneys to its Partnership.


May 5, 2016
Law360 Ranks Foley & Mansfield Among Top Firms for Female Attorneys

The national defense firm of Foley & Mansfield is pleased to announce it has been ranked 15th on Law360’s 2016 list of the 100 best U.S. law firms for women.



  • Public Interest Law Group Fellowship - 2005
  • Dean's Scholarship - 2004


  • Panelist, Chicago Women, Diversity & Change Conference, June, 2019.
  • Ethics in client communications, internal education, Foley & Mansfield University (FMU) 
  • Local court procedures, internal education, Foley & Mansfield University (FMU) 
  • Networking and Job Hunting, St. Louis University
  • Litigation Practice, St. Louis University


  • Stair Climb Team Captain and Participant, Former Member, Past Chair, St. Louis Board for the American Lung Association 
  • Volunteer, National Arbor Day Foundation
  • Volunteer Judge, Missouri Mock Trial Competition