Jeremy Michael Unser Jr. (November 15, 1932 – May 17, 1959) was an American racecar driver. He was the 1957 USAC Stock Car champion. Jerry was the first of the Unser family to compete at Indianapolis. In his only start, in 1958, he was caught up in a 13-car pileup on the first lap and flew over the turn three wall, emerging unhurt. He died in a practice crash before the 1959 Indianapolis 500, leaving behind a widow, Jeanne Unser, and two sons, Jerry and Johnny Unser.