Knock is a 1925 French silent comedy film directed by René Hervil and starring Fernand Fabre, Léon Malavier and René Lefèvre.

[1] Location shooting took place around Uzerche.

It was based on the play of the same title by Jules Romains.

[2] Subsequent sound remakes were made Knock (1933) and Doctor Knock (1951).

This article related to a French film of the 1920s is a stub.