Pern is a fictional planet created by Anne McCaffrey beginning in the 1960s, the setting for the Dragonriders of Pern series of science fiction books. In the story it is "Rukbat 3", the third planet in orbit around the star Rukbat, counting outward.

No Pern fiction has been published since June 2012, several months after Anne McCaffrey's death. There are two collections of Pern stories; twenty-three novels, some written jointly or solely by Todd McCaffrey, the son of Anne; and a few authorized companion books by other writers. The figure shows the habitable portion of Pern's northern continent and a tiny portion of its southern continent, which are the setting for the first novel Dragonflight (1968) and its sequel Dragonquest. East–West it shows approximately that hemisphere known prior to the last two books (2011, 2012). North–South it does not show the abandoned region of "Landing" and early colonization, further to the southeast, whose rediscovery and resettlement is one unifying theme of the stories that follow Dragonquest in Pern historical time, perhaps one third of the series.