Kaiju No. 8 (怪獣８号, Kaijū Hachi-gō) is a Japanese manga series written and illustrated by Naoya Matsumoto.

On August 4, 2022, it was announced that the manga will be getting an anime adaptation, with the anime set to premiere in April 2024.

A spin-off series titled Kaiju No. 8: B-Side by Kentaro Hidano is set to start in January 2024.

Grotesque, towering monsters called kaiju have been appearing around Japan for many years. To combat these beasts, an elite military unit known as the Defense Force risks their lives daily to protect civilians. Once a creature is killed, “sweepers”—working under the Professional Kaiju Cleaner Corporation Monster Sweeper Inc. — are left to dispose of its remains.