Jonathan Fombonne is the Harris County Attorney, serving as Harris County’s chief civil lawyer. With over 5 million residents, Harris County is the third largest county in the country. The Harris County Attorney’s Office represents Harris County and its elected officials in all civil legal matters, with a staff of over 140 attorneys and over 300 employees in total. Jonathan was appointed Harris County Attorney in 2026 by a unanimous vote of the Harris County Commissioners Court to serve out an unexpired term.

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Biography

Prior to his appointment, Jonathan served as Deputy County Attorney and First Assistant under County Attorney Christian Menefee, the former Harris County Attorney. In that capacity, he served as Menefee’s chief deputy, advising all county elected and appointed officials directly and overseeing all operations in the Harris County Attorney’s Office, with a focus on litigation and complex questions of public law. He also served as trial and appellate counsel on a number of the County Attorney’s Office’s most high-profile matters.

Prior to his appointment, Jonathan was a partner at Kirkland & Ellis LLP in Houston, where he had a diverse civil litigation and trial practice, focusing on securities, bankruptcy, and complex commercial litigation, and maintained a robust pro bono practice.

Jon also practiced law at two other national law firms in Texas and New York and clerked for Judge Solomon Oliver, Jr., Chief Judge of the United States District Court for the Northern District of Ohio. He is a graduate of the University of Michigan Law School and Swarthmore College. Jon lives in Houston with his wife, Dr. Lauren Stadler, a Rice University professor, and their three children.