Nelson Smock Riddle, Jr. (June 1, 1921 – October 6, 1985) was an American arranger, composer, bandleader and orchestrator whose career stretched from the late 1940s to the mid-1980s. His work for Capitol Records kept such vocalists as Frank Sinatra, Ella Fitzgerald, Nat King Cole, Judy Garland, Dean Martin, Peggy Lee, Johnny Mathis, Rosemary Clooney and Keely Smith household names. He found commercial and critical success again in the 1980s with a trio of Platinum albums with Linda Ronstadt.