Michael B. Brennan

Mike Brennan
Chief Judge of the United States Court of Appeals for the Seventh Circuit
Assumed office
October 1, 2025
Preceded byDiane S. Sykes
Judge of the United States Court of Appeals for the Seventh Circuit
Assumed office
May 11, 2018
Appointed byDonald Trump
Preceded byTerence T. Evans
Judge of the Milwaukee County Circuit Court
Branch 15
In office
January 2000 – November 30, 2008
Appointed byTommy Thompson
Preceded byRonald Goldberger
Succeeded byJ. D. Watts
Personal details
BornMichael Brian Brennan
1963 (age 62–63)
EducationUniversity of Notre Dame (BA)
Northwestern University (JD)

Michael Brian Brennan (born 1963) is the chief judge of the United States Court of Appeals for the Seventh Circuit. He was first nominated on August 3, 2017, by President Donald Trump, and was re-nominated in 2018. He was confirmed May 10, 2018. He was previously a partner in the Milwaukee law firm Gass Weber Mullins LLC, and served 8 years as a Wisconsin Circuit Court judge.