George Dudley Seymour (October 6, 1859 – January 21, 1945) was an American historian, patent attorney, antiquarian, author, and city planner.

[4] Seymour was a law graduate of Columbian College in Washington, D.C., and received an honorary Master of Arts degree from Yale University in 1913.

[10] Seymour was a former vice president of the American Federation of Arts, a trustee of the Wadsworth Atheneum, and chairman of the State Commission of Sculpture.

[11][12] He was a close friend of William Howard Taft, John Singer Sargent,[13] and Gifford Pinchot,[14] and a cousin of Yale President Charles Seymour.

[17] Upon his death, Seymour gifted to the United States government the life-size bronze statue of Nathan Hale by sculptor Bela Lyon Pratt;[18] the statue is located at the south facade of the United States Department of Justice headquarters in Washington, D.C.Seymour was a leading figure in the municipal development of New Haven, and was the city's most fervent proponent of the City Beautiful movement.