County Home
Franklin County Prosecuting Attorney Ron O'Brien

RON O'BRIEN, Franklin County's 50th Prosecuting Attorney, is the former Columbus City Attorney, Columbus City Prosecutor and Franklin County Assistant Prosecuting Attorney. Ron O'Brien has over 40 years of governmental law service to the City of Columbus, Franklin County and its citizens.

This week in Court

See the document below for trials scheduled to start this week*. Case information online has more info about each case.



*Trials can be continued or rescheduled at any time. Please check with the court assignment office for most current information at 645-8346

CTAP Event

The Victim Witness Assistance Unit was recently honored with an award for excellence by Mount Carmel’s Crime & Trauma Assistance Program

Click the link below to read more about it and see more pictures

33rd Annual State Mock Trial Championship

On Thursday March, 10th the 33rd annual Ohio Mock Trial State Competition was held at the Franklin County Courthouse Complex. View the full article for pictures and more.

DeSales Champions Honored

Prosecutor O'Brien (DeSales class of '66) pictured with head coach Domenic Romanelli (class of '83) and members of the 2015 boys soccer state championship team while being honored during the Franklin County Commissioners morning session.

Prosecutor of the Year

Franklin County Prosecutor Ron O’Brien is named the 2015 Ohio Prosecutor of the year by the Ohio Prosecuting Attorney’s Association at the awards dinner during the annual meeting in Columbus on December 3, 2015




The Office of the Franklin County Prosecuting Attorney exists pursuant to the provisions of the Ohio Revised Code. The office consists of 116 assistant prosecuting attorneys along with 108 employees that make up the support staff.

The Prosecuting Attorney represents the State of Ohio by inquiring into and prosecuting felony crimes committed by adults and all offenses committed by juveniles. The Franklin County Prosecuting Attorney is also legal counsel for county officials, county agencies, townships and various boards. Please review our FAQ for answers to many common questions about the court process and how our office works.

Press Releases