Eileen O'Neill Burke

Eileen O'Neill Burke (born 1965) is an American lawyer, politician, and former judge serving as the Cook County State's Attorney since her election in 2024. She was previously a justice on the Illinois First District Appellate Court and a judge on the Circuit Court of Cook County. Before that, she worked for a decade as a prosecutor and a criminal defense lawyer.

Early life and education O'Neill Burke was born and raised in Northwest Side, Chicago. She earned her undergraduate degree from the University of Illinois Urbana-Champaign and a Juris Doctor degree from Illinois Institute of Technology Chicago-Kent College of Law.

Career O'Neill Burke began her legal career as an assistant state’s attorney for Cook County, Illinois, a position she held for ten years, where she prosecuted criminal cases. During her tenure, she served as faculty for judicial education programs, training both trial and appellate judges.

During the 2024 Cook County, Illinois, elections, O'Neill Burke was elected Cook County State's Attorney. She narrowly defeated Clayton Harris III in the Democratic primary by fewer than 1,600 votes and won the general election with approximately 67 percent of the vote against Republican candidate Bob Fioretti. On December 2, 2024, she succeeded Kim Foxx, who chose not to run for reelection.

Personal life O'Neill Burke is married to lawyer John "JD" Burke.