James Kenneth Logan (born August 21, 1929) is a former United States federal judge.
Born in Quenemo, Kansas, Logan was a Corporal in the United States Army in the aftermath of World War II, from 1947 to 1948. He received an A.B. from the University of Kansas in 1952 and an LL.B. from Harvard Law School in 1955. He was a law clerk, Hon. Walter Huxman, U.S. Court of Appeals, Tenth Circuit from 1955 to 1956. He was in private practice in Los Angeles, California from 1956 to 1957. He was an Assistant professor, University of Kansas School of Law from 1957 to 1961. He was a Dean and professor of law, University of Kansas School of Law from 1961 to 1968. He was a Special U.S. Commissioner, U.S. District Court for the District of Kansas from 1964 to 1967. He was an Ezra Ripley Thayer teaching fellow, Harvard Law School from 1961 to 1962. He was a Visiting professor of law, University of Texas in 1964. He was in private practice in Olathe, Kansas from 1968 to 1977. He was a Visiting professor of law, Stanford University in 1969. He was a Visiting professor of law, University of Michigan in 1976. He was a Lecturer in law, University of Kansas School of Law in 1982. He was a Lecturer in law, Duke University, 1987, 1991 in 1993.
Logan was a federal judge on the United States Court of Appeals for the Tenth Circuit. Logan was nominated by President Jimmy Carter on November 4, 1977, to a seat vacated by Delmas Carl Hill. He was confirmed by the United States Senate on December 15, 1977, and received his commission on December 16, 1977. He assumed senior status on August 31, 1994. Logan served in that capacity until July 15, 1998, due to retirement.