Conversion (disambiguation)

 has several meanings pertinent to the Doctor Who universe and the real world. They are listed below in alphabetical order.
 * Conversion (BFM audio story), a Big Finish audio story from the Main Range
 * Conversion (audio story), a Big Finish audio story from the Cyberman audio series
 * Conversion (comic story), a comic story from Doctor Who: The Eleventh Doctor
 * Conversion (graphic novel), a graphic novel which collected this story, among others