"Chimera" is the sixteenth episode of the seventh season of the science fiction television series The X-Files. It premiered on the Fox network in the United States, on April 2, 2000, was written by David Amann, and directed by Cliff Bole. The episode is a "Monster-of-the-Week" story, unconnected to the series' wider mythology. "Chimera" earned a Nielsen household rating of 7.5, being watched by 12.89 million people in its initial broadcast. The episode received mostly positive reviews from critics.