God of Shinobi

The God of Shinobi (忍の神, Shinobi no Kami) is a title that refers to shinobi with incredible power, hailed as the strongest in their respective era. The title has been held by a few shinobi, and is greatly respected by the entire Shinobi world. 
Only the following have been given this monicker:
* Yoshiko Ōtsutsuki (Pre-Chakra Era)
* Hagoromo Ōtsutsuki (Age of Chakra Era)
* Hashirama Senju (First Shinobi World War)
* Hiruzen Sarutobi (Second Shinobi World War)