Samuel Lyon Russell (July 30, 1816 – September 27, 1891) was a Whig member of the United States of America (U.S.) House of Representatives from Pennsylvania.
He then studied law, was admitted to the bar in 1837, and opened his legal practice in Bedford.
An attorney with private practice experience, Russell subsequently served as prosecuting attorney for Bedford County, Pennsylvania, during the 1840s.
He was then elected as a Whig to the 33rd United States Congress, but was not a candidate for renomination.
After resuming the practice of law in Bedford, he became a Republican upon the organization of that party in 1856.