|This article is about a/an group in Kamen Rider Zi-O.|
Niji no Hebi (虹蛇 lit. "Rainbow Serpent") is a ninja clan existed in the year 2022.
In the year 2022, Niji no Hebi is believed as a wirepuller behind the phenomenon that caused the shortage of Japan's natural resources and why people are living in a ninja society.
- In real life, Rainbow Serpent is a deity in aboriginal religions of Australia.