Henry Coston (20 December 1910 – 26 July 2001) was a French far-right, anti-Semitic journalist, collaborationist and conspiracy theorist.

After joining the Action française, Coston was influenced by journalist Édouard Drumont and took over his newspaper La Libre Parole (an anti-Semitic paper well-known during the Dreyfus affair) in the 1930s.

"[2] In the run-up to World War II, he was also in close touch with Ulrich Fleischhauer, German publisher of an internationally distributed anti-Jewish propaganda newsletter, the Welt-Dienst / World-Service / Service Mondial.

He also was vice-president of the "Association of anti-Jewish Journalists" and he organised the publication of one of the most anti-Semitic document of the Vichy regime, a tract entitled "I hate you" (Je vous hais).

From 1967 to 2000, Coston wrote a five-volume Dictionary of French politics (Dictionnaire de la politique française), which is considered as "exactly referenced" and "a non-negligible source of information" by the Jewish historian Simon Epstein.