John F. Dunn



(312) 382-3165

(312) 382-8910

During his nine years at his previous firm, John led the Illinois Government Relations group and developed a large and successful government relations practice representing companies before city and state government. His clients include major companies in the tech, aviation, transportation, health, manufacturing and banking  sectors. He has assisted several disruptive tech companies in dealing with regulatory, legislative and political hurdles. John also has a significant public procurement practice and has helped clients win major city and state contracts. 

Previously he served as Chicago Mayor Richard M. Daley’s Director of Intergovernmental Affairs, reporting directly to the mayor and serving as his senior adviser on all legislative and political matters. John served as the mayor’s liaison to all federal, state, and local elected officials; was responsible for the appointments to and relations with all city boards and commissions; and oversaw labor relations. As director of the city’s Springfield team, he passed many pieces of significant state legislation and gained an unparalleled understanding of the relationship between City Hall and Springfield. 

Prior to his city experience, John worked at two large Chicago law firms and as AT&T’s Midwest legislative attorney. He earned his J.D. at the University of California Hastings College of Law and his B.A. at the University of Notre Dame.  He served four years as a U.S. Navy officer. 



Leading Lawyers Network Recognizes 26 Cozen O’Connor Lawyers as Top Illinois Practitioners

January 26, 2021

The Leading Lawyers Network has named 24 Cozen O’Connor lawyers to its annual list of Illinois’ top practitioners and named two others as Emerging Lawyers in its 2021 survey results.

Cozen O'Connor Adds Three Lobbyists in Chicago

September 19, 2019

Cozen O'Connor welcomes three new lobbyists, John F. Dunn, Darren Collier, and Patrick L. Carey to the Public Strategies practice in Chicago.

Cozen O’Connor Public Strategies Continues its National Expansion, Adding John F. Dunn, Darren Collier, and Patrick L. Carey to Growing City of Chicago and State of Illinois Practice

September 04, 2019

Cozen O’Connor cements its top-tier lobbying presence in three of the largest cities in the United States — Chicago, Philadelphia, and New York — and the corresponding state capitals.


  • University of California, Hastings College of the Law, J.D., 1992
  • University of Notre Dame, B.A., 1985
  • Illinois