Theodore Henry Schreiber (July 11, 1938 – September 8, 2022) was an American professional baseball player. He played part of one season (1963) in Major League Baseball — largely as a third baseman — with the New York Mets, batting .160 with no extra base hits in 50 at-bats, with two runs batted in. He threw and batted right-handed, stood 5 ft 11 in (1.80 m) tall, and weighed 175 lb (79 kg). Upon leaving baseball, Schreiber became a full-time teacher at a junior high school in Sunset Park, Brooklyn. He retired after 27 years at the school. He died September 8, 2022.