Seth Riggs (born September 19, 1930) is an American singer, actor, and vocal coach. He has created the vocal technique "Speech Level Singing", and has worked with performers such as Prince, Michael Jackson, Stevie Wonder, José José, Ray Charles, Madonna, Johnny Hallyday, Sohyang, AGNEZ MO, Bette Midler, Julio Iglesias and Barbra Streisand. Riggs conducts workshops and masterclasses around the world, as well as teaches private lessons together with his wife, recording- and performing artist as well as voice teacher Margareta Svensson Riggs.