William Cordes "Rudy" Schlesinger (born November 5, 1941) is an American former professional baseball player. He had one at bat in Major League Baseball as a pinch hitter for the 1965 Boston Red Sox. Listed at 6 feet 2 inches (1.88 m), 175 pounds (79 kg), Schlesinger batted and threw right-handed. He spent much of his seven-year (1964–70) professional career in the Red Sox organization, although Boston would lose him on waivers once, trade him twice, and reacquire him twice in the space of four seasons.