Khan may refer to:
- People
- Khan Noonien Singh, one of the most infamous Augments in Earth's history
- Genghis Khan, historical dictator of Mongols
- Media
- Star Trek II: The Wrath of Khan, the second Star Trek movie
- Star Trek II: The Wrath of Khan (The Director's Edition), the DVD release of the movie
- Star Trek: The Wrath of Khan, the novelization of the movie
- Star Trek: The Wrath of Khan, the comic adaptation of the movie
- Stories
- The Eugenics Wars: The Rise and Fall of Khan Noonien Singh, the trilogy of books about Khan Noonien Singh's life
- To Reign in Hell: The Exile of Khan Noonien Singh, Khan Noonien Singh's story between "Space Seed" and Star Trek II
- Khan: Ruling in Hell, a comic series telling a story about Singh's time between "Space Seed" and Star Trek II
- See also
- Kahn, a similar word
- "Space Seed", the Original Series introduction of Khan Noonien Singh
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