Theodore Roosevelt Darby, better known as Blind Teddy Darby (March 2, 1906 – December 1975), was an American blues singer and guitarist.
Darby was born in Henderson, Kentucky. He moved to St. Louis with his family when he was a child. His mother taught him to play the guitar. He served some time for selling moonshine. In 1926 he lost his eyesight because of glaucoma.
He recorded from 1929 until 1937 under the names Blind Teddy Darby, Blind Darby, Blind Blues Darby and Blind Squire Turner for Paramount, Victor, Bluebird, Vocalion and Decca. In 1960 he was "rediscovered" and recorded by Pete Welding of Testament Records, but the recordings from this session were never released.