William Perry Copple
William Perry Copple (October 3, 1916 – September 14, 2000) was a United States federal judge.
Born in Holtville, California, Copple received an A.A. from Long Beach City College in 1934, a B.A. from the University of California, Berkeley in 1948, and a J.D. from the University of California, Berkeley, Boalt Hall School of Law in 1951. He was a self-employed contractor from 1945 to 1948 and from 1951 to 1952, entering private practice in Yuma, Arizona from 1952 to 1965. He was the United States Attorney for the District of Arizona from 1965 to 1966.
On September 30, 1966, Copple was nominated by President Lyndon B. Johnson to a new seat on the United States District Court for the District of Arizona created by 80 Stat. 75. He was confirmed by the United States Senate on October 20, 1966, and received his commission on November 3, 1966. He assumed senior status on November 30, 1983, serving in that capacity until his death, in Cottonwood, Arizona.