The Citadel

The Citadel may refer to:


 * An alternative name for the Time Lords' Capitol on Gallifrey. (TV: The Invasion of Time)
 * The Citadel of Peladon, the main castle on Peladon (TV: The Curse of Pealdon, The Monster of Peladon and others)
 * The name for the centre of government for the planet of Karfel. (TV: Timelash)