"I Wish You Would" is a song recorded by Chicago blues musician Billy Boy Arnold in 1955. It was developed while Arnold was performing with Bo Diddley and incorporates a Diddley-style rhythm. Called "a timeless Chicago blues classic", "I Wish You Would" is Arnold's best-known song and has been recorded by several artists, including the Yardbirds, who recorded it for their debut single in 1964.

William "Billy Boy" Arnold is an American blues harmonica player, singer and songwriter. Arnold is a self-taught harmonica player and has worked with blues legends such as Bo Diddley, Johnny Shines, Otis Rush, Earl Hooker, Howlin' Wolf, Muddy Waters and others.