The Chalcedon Foundation is an American Christian Reconstructionist organization founded by Rousas John Rushdoony in 1965. Named for the Council of Chalcedon, it has also included theologians such as Gary North, who later founded his own organization, the Institute for Christian Economics.
The Chalcedon Foundation provides educational material in the form of books, newsletter reports and various electronic media, toward advancing the theological teachings of Rushdoony's Christian Reconstructionism movement. It is notable for its role in the influence of Christianity on politics in the U.S. and has been described as "a think tank of the Religious Right." Rushdoony's son Mark now heads the foundation.
The Chalcedon Foundation has been listed as an anti-gay hate group by the Southern Poverty Law Center.
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