Daffodon IX was a planet, the ninth planet in the Daffodon star system. Daffodon IX was home to the legendary tale of the Marching Goddess, which was similar in content to the Earth's legend of the Pied Piper.

Odo considered these legends when leading Horta through the space station corridors on Starbase Deep Space 9. (DS9 novel: Devil in the Sky)