Ryuu Fujisaki is a Japanese mangaka born in Mutsu, Aomori Prefecture.

He won the 39th and the 40th Tezuka Award. He made his professional manga debut with Worlds in 1990.

Fujisaki is best known for the series Hoshin Engi. His other works include: Psycho+, Dramatic Irony, Worlds, Sakuratetsu Taiwahen, Waq Waq, and most recently Shiki, which is based on a novel by Ono Fuyumi.