Harvey Samuel Whistler Jr. (September 7, 1907 – March 17, 1976) was an American violinist, editor, arranger, and composer of educational music studies for studio, homogenous, and heterogeneous class instrumental (strings and band) instruction. In all, Whistler and colleagues published around 83 known educational music collections and methods for instrumental ensembles. Among his best known works are his violin and viola etude books, "Introducing the Positions," "Preparing for Kreutzer," "From Violin to Viola," and "Developing Double Stops" all of which were published by the Rubank, Inc. music publishing company, and are still available through the Hal Leonard Co.