John Turner Sargent Sr. (June 26, 1924 – February 5, 2012) was president and CEO of the Doubleday and Company publishing house from 1963 to 1978, taking over from the previous president, Douglas Black. He led the expansion of the company from "a modest, family-controlled business to an industry giant with interests extending into broadcasting and baseball." A socialite, he was active in New York's cultural circles.