The Campaign Against Racial Discrimination (CARD) was a British organization, founded in 1964 and which lasted until 1967, that lobbied for race relations legislation. The group's formation was inspired by a visit by Martin Luther King to London in December 1964 on his way to to receive the Nobel Peace Prize. The Trinidadian pacifist Marion Glean, then a graduate student at the London School of Economics, arranged with Bayard Rustin for King to meet a group of Black spokespersons and activists at the Hilton Hotel, where an ad hoc committee was formed for a movement to "agitate for social justice and oppose all forms of discrimination", with CARD formally being launched at the next meeting on 10 January 1965.
CARD's founding members, as well as Marion Glean, included politician Anthony Lester, London County Councillor David Pitt, historian C. L. R. James and the sociologist Hamza Alavi.