Twilight Zone literature is an umbrella term for the many books and comic books which concern or adapt The Twilight Zone television series. The Twilight Zone was a pioneer in this area, preceding the more popular literary movements which would follow Star Trek or Star Wars and which is now a staple of all successful movies, television series and video games.

Numerous novelizations were published based upon episodes of Twilight Zone, as were several volumes of original short stories published under the Twilight Zone brand and edited by Rod Serling himself.

Gold Key Comics published a long-running Twilight Zone comic that featured the likeness of Serling introducing both original stories and occasional adaptations of episodes. The comic outlived the television series by nearly 20 years and Serling by nearly a decade.

Marc Scott Zircee wrote an episode-by-episode guide of the original series, The Twilight Zone Companion which became a best-seller and greatly influenced future tomes on television series.

For nearly a decade The Twilight Zone Magazine acted as the science-fiction counterpart of Fangoria, reviewing and previewing new movies while publishing original short stories and articles about the original and revival Twilight Zone television series.