Oscar Frederick Louis Roettger (February 19, 1900 – July 4, 1986) was an American baseball player whose 19-year active career was augmented by brief service as a minor-league manager and over 35 years as the liaison between the Rawlings Sporting Goods Company and professional baseball. In his abbreviated Major League career, he appeared in 37 total games as a pitcher and first baseman for the New York Yankees (1923–1924), Brooklyn Robins (1927) and Philadelphia Athletics (1932). He threw and batted right-handed, stood 6 feet (1.8 m) tall and weighed 170 pounds (77 kg).