Jamie Moyer (born November 18, 1962 in Sellersville, Pennsylvania) is a Major League Baseball pitcher for the Philadelphia Phillies. He is currently the oldest active player in the major leagues, and has been likened to Phil Niekro.

Moyer has pitched for the Chicago Cubs, Texas Rangers, St. Louis Cardinals, Baltimore Orioles, Boston Red Sox, Seattle Mariners and Philadelphia Phillies. His most successful seasons were with the Mariners, making the All-Star team in 2003. His philanthropy and community service has been well awarded, winning the 2003 Roberto Clemente Award, the 2003 Lou Gehrig Memorial Award, the 2003 Hutch Award and the 2004 Branch Rickey Award.

He attended Souderton Area High School in Souderton, Pennsylvania. Moyer played baseball, basketball and golf in high school.