John Weekly (June 14, 1937 – November 24, 1974) was an American professional baseball player whose career extended from 1956 through 1965. The outfielder appeared in 53 Major League games for the Houston Colt .45s from 1962 to 1964. Weekly batted and threw right-handed; he stood 6 feet (1.8 m) tall and weighed 200 pounds (91 kg).