John Edward King (born September 14, 1994) is an American professional baseball pitcher for the St. Louis Cardinals of Major League Baseball (MLB). He has previously played in MLB for the Texas Rangers. On September 4, 2020, King’s contract was selected to the active roster and made his major league debut that day against the Seattle Mariners. In 10 1⁄3 innings for Texas in 2020, King went 1–0 with a 6.10 ERA and 9 strikeouts.