The Ninja dogs are the recurring themes in the manga by Yoshihiro Takahashi, most of them are trained by their masters a very long time ago during the war. There are different types of Ninja dogs in Yoshihiro's manga such as the Koga Clan, Iga Clan, and Sanada Clan.

They appeared in different manga such as Ginga Nagareboshi Gin, Ginga Densetsu Weed, Ginga Densetsu Weed Orion and Kacchu no Senshi Gamu.