The phrase Caput Draconis means "Dragon's head" or "Head of the dragon" in the Latin language. Caput Draconis or Dragon's Head can refer to:
- In astrology and old astronomy, the ascending or north-going node of the moon's orbit (i.e. intersection between the ecliptic and the moon's visible path in sky as seen from earth).
- The "Caput Draconis" figure in geomantic divination.
- The first password in the book Harry Potter and the Philosopher's Stone for the Gryffindor common room in Harry's first term.
- Dracocephalum (the "Dragon's head" plant).