James L. O'Connor (June 3, 1859 – August 19, 1931) was an American lawyer and Democratic politician.
He was born in Hartford, Wisconsin and graduated from University of Wisconsin Law School.
O'Connor served as city attorney for Madison, Wisconsin, and then district attorney of Dane County, Wisconsin.
After serving as Wisconsin Attorney General, O'Connor moved to Milwaukee, Wisconsin, where he continued to practice law.
This article about a Wisconsin politician is a stub.