Claude-Henri Grignon, OC, FRSC (July 8, 1894 – April 3, 1976)[1] was a French-Canadian novelist, journalist and politician, best known for his 1933 novel Un Homme et son péché.

[4][1] By contrast, Guèvremont's novels in the same period continued to follow Quebec's more traditionalist romans du terroir style.

[3] Grignon released the short story collection Le Déserteur et autres récits de la terre in 1934.

In his work Les Pamphlets de Valdombre, a trenchant satire of the government of Maurice Duplessis,[5] Grignon advanced the theory that publisher and literary critic Louis Dantin was the real author of the poetry of Émile Nelligan;[6] although the claim was widely derided and denied by Dantin himself, it was later readvanced by literary historian Yvette Francoli in her 2013 book Le naufragé du Vaisseau d'or.

He subsequently wrote a serial radio dramatization of Un Homme et son péché,[7] as well as the television adaptation Les Belles Histoires des pays d'en haut.