Guardian

Guardian may refer to:

In-universe

 * Guardian of the Solar System - a title given to the ruler of the Sol system. (DW: The Daleks' Master Plan)
 * Guardian - a title given to the humans aboard the Ark. (DW: The Ark)
 * Guardian - a title given to the traditional military leader of the Vogans. (DW: Revenge of the Cybermen)
 * The Guardians of Time - Transcendental Beings entrusted with aspects of the universe. (DW: The Ribos Operation)

Out-of-universe

 * Guardian of the Tomb - a Fourth Doctor comic story published in TV Comic.
 * The Guardians of Terror - a Tenth Doctor comic story published in Doctor Who: Battles in Time.
 * The Guardian of Murcher - a Tenth Doctor comic story published in Doctor Who Adventures.
 * The Guardian of the Solar System - a release in The Companion Chronicles series.