Edward Thaxter Gignoux (June 28, 1916 – November 4, 1988) was a United States federal judge.
Born in Portland, Maine, Gignoux received an A.B. from Harvard College in 1937 and an LL.B. from Harvard Law School in 1940. He was in private practice in Buffalo, New York from 1940 to 1941, then in Washington, D.C. from 1941 to 1942. He was in the United States Army during World War II, from 1942 to 1946, returning to private practice in Portland, Maine from 1946 to 1957.
On August 9, 1957, Gignoux was nominated by President Dwight D. Eisenhower to a seat on the United States District Court for the District of Maine vacated by John David Clifford, Jr. Gignoux was confirmed by the United States Senate on August 22, 1957, and received his commission on August 26, 1957. He served as chief judge from 1978 to 1983, during which time the Edward T. Gignoux U.S. Courthouse was named in his honor in 1982. He assumed senior status on June 1, 1983, serving in that capacity until his death, in Portland, Maine.