"John Doe" is the seventh episode of the ninth season of the American science fiction television series The X-Files. The episode first aired in the United States on January 13, 2002 on the Fox network. It was written by executive producer Vince Gilligan, and directed by co-executive producer Michelle MacLaren. The episode is a "monster-of-the-week" episode, a stand-alone plot which is unconnected to the mythology, or overarching fictional history, of The X-Files. "John Doe" earned a Nielsen rating of 5.0 and was viewed by 5.28 million households. The episode received largely positive reviews from television critics.