Guardian

Guardian may refer to:

In-universe

 * Guardian of the Solar System - a titleof the ruler of the Sol system. (TV: The Daleks' Master Plan)
 * Guardian (The Ark) - a title given to the humans aboard the Ark. (TV: The Ark)
 * Guardian (Revenge of the Cybermen) - the traditional guardians of Voga's gold mines. (TV: Revenge of the Cybermen)
 * The Guardians of Time - Transcendental Beings entrusted with aspects of the universe. (TV: 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.