John LaFarge Jr. SJ (February 13, 1880 – November 24, 1963) was an American Jesuit Catholic priest known for his activism against racism and anti-semitism. Involved in the heyday (and eventual breakup) of Thomas Wyatt Turner's Federated Colored Catholics, LaFarge went on to found a short-lived offshoot, the Catholic Interracial Council. In the run-up to World War II, he worked on a draft of a papal encyclical against racist and totalitarian ideologies for Pope Pius XI; entitled Humani generis unitas, though it was never promulgated due to the death of Pius XI on February 10, 1939.