R.J. Mischo (born March 18, 1960) is an American electric blues harmonicist, singer, songwriter, and record producer. To date he has released twelve albums on a number of labels, and his music has been aired on independent film scores, television commercials, and documentaries on the Discovery Channel. Mischo has contributed to a couple of Mel Bay harmonica instruction books. In addition, he was listed in that author's The Encyclopedia of Harmonica.