Jack Edward Baldschun (born October 16, 1936) is an American former professional baseball player. He was a relief pitcher in Major League Baseball (MLB) for all or part of nine seasons (1961–67; 1969–70), for the Philadelphia Phillies, Cincinnati Reds and San Diego Padres. Baldschun threw and batted right-handed, and was listed as 6 feet 1 inch (1.85 m) tall, weighing 175 pounds (79 kg).