Le Roi des médiums, also known as Apparitions fantômatiques and known in English as King of the Mediums, was a 1909 French short silent film by Georges Méliès.

Méliès played a magician in the film.^[1] It was sold by Méliès's Star Film Company and is numbered 1522-1529 in its catalogues, where it was advertised with the descriptive subtitle apparitions fantômatiques (ghostly apparitions).^[1] The film has sometimes been referred to by this subtitle.^[2]

No English-language release is known for this film,^[1] but the translated title King of the Mediums has been used in film reference.^[2] The film is currently presumed lost.^[1]