Robert Samuel Hall (March 10, 1879 – June 10, 1941) was a U.S. Representative from Mississippi.
Hall was graduated from the law department of Millsaps College in 1900.
He was admitted to the bar the same year and commenced practice in Hattiesburg.
He served as chairman of the Committee on Irrigation and Reclamation (Seventy-second Congress).
He was employed in the legal division of the Federal Trade Commission in Washington, D.C., from 1933 until his death in Arlington, Virginia, June 10, 1941.