Mac Swinford (December 23, 1899 – February 3, 1975) was a United States federal judge.
Born in Cynthiana, Kentucky, Swinford attended the University of Virginia and read law in 1922, then graduated from the University of Virginia School of Law in 1925. He was in private practice in Cynthiana, Kentucky from 1922 to 1933. He was a member of the Kentucky House of Representatives from 1926 to 1929, and was then the U.S. Attorney for the Eastern District of Kentucky from 1933 to 1937.
On August 19, 1937, Swinford was nominated by President Franklin D. Roosevelt to a new seat on both the United States District Court for the Western District of Kentucky and on the United States District Court for the Eastern District of Kentucky, both created by 49 Stat. 1806. He was confirmed by the United States Senate on August 20, 1937, and received his commission the following day, serving thereafter until his death.