Michael Ryan Barrett (born January 14, 1951) is a senior United States district judge in Ohio. Barrett practiced law for nearly 30 years before he was nominated by President George W. Bush and approved by the Senate to the United States District Court for the Southern District of Ohio in 2006.

Career output and lasting influence
Opinions attributed per year · peak 3/year
Later decisions citing those opinions, per year · peak 5/year
Ohio Southern District Court · 2006–
Both charts share the same year axis. Opinion counts include only opinions in our corpus attributed to this judge so far — a year at zero can mean an attribution gap, not judicial silence. Influence typically outlasts the career: citations keep climbing after the last opinion.
- Gender
- Male
- Race
- White
Prior employment
- Private practice, Cincinnati, Ohio1984–2006
- Hamilton County, OhioAssistant and chief assistant prosecutor · 1978–1984
- State of OhioAdministrative hearing officer · 1977–1978
Appointments
2006–2019 · Appointed by George W. Bush (Republican)
Education
J.D. · 1977- University of CincinnatiB.A. · 1974