Ruth Ann Steinhagen (born Ruth Catherine Steinhagen; December 23, 1929 – December 29, 2012) was an American woman who shot and nearly killed Eddie Waitkus, star first baseman of the Philadelphia Phillies, on June 14, 1949, in one of the first instances of what later became known as stalker crimes. The incident is one of the inspirations for the 1952 baseball book The Natural, made into a film in 1984.