Ralph Lewis (8 Oktober 1872 – 4 Desember 1937) was 'n Amerikaanse akteur. Hy was bekend vir sy rolle in die rolprente The Birth of a Nation (1915), The Wolf Man (1915), Dante's Inferno (1924), en Casey Jones (1927).
- 1914: The Avenging Conscience: or 'Thou Shalt Not Kill'
- 1914: The Great Leap: Until Death Do Us Part
- 1915: The Birth of a Nation
- 1915: The Wolf Man
- 1915: Jordan Is a Hard Road
- 1915: The Outcast
- 1916: The Children Pay
- 1916: Going Straight
- 1916: Gretchen the Greenhorn
- 1916: Hell-to-Pay Austin
- 1916: Martha's Vindication
- 1917: Her Temptation
- 1917: The Silent Lie
- 1917: This Is the Life
- 1918: Cheating the Public
- 1918: Fires of Youth
- 1918: The Kid Is Clever
- 1918: Revenge
- 1919: The Dub
- 1919: Eyes of Youth
- 1919: The Hoodlum
- 1919: The Long Lane's Turning
- 1919: The Valley of the Giants
- 1920: 813
- 1920: Outside the Law
- 1920: What Women Love
- 1920: Common Sense
- 1921: The Conquering Power
- 1921: Man-Woman-Marriage
- 1921: Prisoners of Love
- 1921: A Private Scandal
- 1921: Salvage
- 1921: Sowing the Wind
- 1922: The Sin Flood
- 1922: Broad Daylight
- 1922: Environment
- 1922: The $5 Baby
- 1922: Flesh and Blood
- 1922: The Third Alarm
- 1923: Blow Your Own Horn
- 1923: The Mailman
- 1923: Tea: With a Kick!
- 1923: Vengeance of the Deep
- 1923: The West~Bound Limited
- 1924: Dante's Inferno
- 1924: The Man Who Came Back
- 1924: Untamed Youth
- 1925: The Bridge of Sighs
- 1925: The Last Edition
- 1925: The Million Dollar Handicap
- 1925: One of the Bravest
- 1925: The Overland Limited
- 1926: Bigger Than Barnum's
- 1926: The Block Signal
- 1926: The False Alarm
- 1926: The Lady from Hell
- 1926: Shadow of the Law
- 1926: The Silent Power
- 1927: Casey Jones
- 1927: Held by the Law
- 1927: The Shield of Honor
- 1927: The Sunset Derby
- 1928: Crooks Can't Win
- 1928: Outcast Souls
- 1930: The Fourth Alarm
- 1933: Sucker Money
- 1934: Badge of Honor
- 1935: Sunset Range
- 1935: Swifty
- 1935: The Lost City
- 1998: The Making of 'The Birth of a Nation'
