Lewis Southworth, also identified as Louis Southworth (1830–1917), was a pioneer and freed slave who settled a donation land claim in 1880 near Waldport in the U.S. state of Oregon. Born in Tennessee, he was brought to the territory by his "master", from whom he bought his freedom with cash earned chiefly from his expertise with the fiddle or violin. Southworth lived or worked near Monroe, Jacksonville, and Buena Vista before settling along a small tributary of the Alsea River, where he farmed and engaged in other enterprises and civic undertakings. After his wife died in 1901, Southworth bought a house in Corvallis, where he lived for the rest of his life.