Roy Mahlon Shelbourne (November 12, 1890 – December 29, 1974) was a United States district judge of the United States District Court for the Western District of Kentucky.

Born in Bardwell, Kentucky, Shelbourne received an Artium Baccalaureus degree from Union University in Jackson, Tennessee in 1912 and a Bachelor of Laws from Cumberland School of Law (then part of Cumberland University, now part of Samford University) in 1913.

He returned to private practice in Paducah, Kentucky from 1936 to 1946.

[1] Shelbourne was nominated by President Harry S. Truman on January 17, 1946, to a seat on the United States District Court for the Western District of Kentucky vacated by Judge Shackelford Miller Jr.

Shelbourne served in that capacity until his death on December 29, 1974, in Louisville, Kentucky.