John Herman Henry Sengstacke was an American newspaper publisher and owner of the largest chain of African-American oriented newspapers in the United States. Sengstacke was also a civil rights activist and worked for a strong black press, founding the National Newspaper Publishers Association in 1940, to unify and strengthen African-American owned papers. Sengstacke served seven terms as president of the association, which by the early 21st century had 200 members.
A nephew of newspaper founder, Robert Sengstacke Abbott, Sengstacke was Abbott's designated heir to take over the Chicago Defender, which he did after his uncle's death in 1940. Sengstacke also published the Michigan Chronicle in Detroit; the Tri-State Defender in Memphis, Tennessee; and acquired the Pittsburgh Courier in 1966, re–opening it the next year as the New Pittsburgh Courier. Sengstacke worked with President Franklin D. Roosevelt to have African-American reporters admitted to presidential press conferences. He pressed for opportunities in the United States Postal Service for African Americans. One of Sengstacke's major political goals was to desegregate the armed forces.