Madison Kyle Bumgarner (born August 1, 1989), commonly known by his nickname, "MadBum", is an American professional baseball pitcher for the San Francisco Giants of Major League Baseball (MLB). He stands 6 feet 5 inches (1.96 m) tall and weighs 250 pounds (110 kg). Bumgarner has won three World Series championships (2010, 2012, 2014) and two Silver Slugger Awards (2014, 2015). He has also been selected to four National League All-Star teams and is the Giants' strikeout leader by a left-handed pitcher in the San Francisco era.

Bumgarner played high school baseball at South Caldwell High School in Hudson, North Carolina, where he helped his team win the 2007 4A State Championship. After graduating, he was selected with the tenth overall pick in the 2007 MLB Draft by the San Francisco Giants. In his first year playing professionally, 2008, he won the South Atlantic League pitching triple crown. By throwing eight scoreless innings in Game 4 of the 2010 World Series, he became the youngest left-handed pitcher to accomplish the feat and helped win the franchise's first World Series in San Francisco and first since 1954.