| Lycurgus Luther Marshall | |
| State1: | Ohio |
| District1: | At-large |
| Term Start1: | January 3, 1939 |
| Term End1: | January 3, 1941 |
| Preceded1: | John McSweeney Harold G. Mosier |
| Succeeded1: | George H. Bender Stephen M. Young |
| Office2: | Member of the Ohio Senate |
| Term2: | 1923-1935 |
| Office3: | Member of the Ohio House of Representatives |
| Term3: | 1921-1922 |
| Birth Date: | 9 July 1888 |
| Birth Place: | Bucyrus, Ohio |
| Death Place: | Aurora, Ohio |
| Restingplace: | Lake View Cemetery, Cleveland |
| Party: | Republican |
| Alma Mater: | Ohio Wesleyan University Western Reserve University School of Law |
Lycurgus Luther Marshall (July 9, 1888 – January 12, 1958) was an American lawyer and politician who served one term as a U.S. Representative from Ohio from 1939 to 1941.
Born in Bucyrus, Ohio, Marshall attended the public schools, and graduated from Ohio Wesleyan University, Delaware, Ohio, in 1909 and from the law department of Western Reserve University, Cleveland, Ohio, in 1915. He was admitted to the bar in 1915 and commenced practice in Cleveland, Ohio.
He served as member of the Ohio House of Representatives in 1921 and 1922, and in the Ohio State Senate from 1923 to 1935. He also served as member of the Euclid (Ohio) School Board for eight years.
Marshall was elected as a Republican to the Seventy-sixth Congress (January 3, 1939 – January 3, 1941).He was an unsuccessful candidate for reelection in 1940 to the Seventy-seventh Congress, and thereafter resumed the practice of law.
He died in Aurora, Ohio, January 12, 1958, and was interred in Lake View Cemetery, Cleveland, Ohio.