There's a Demon Lord on the Floor (Japanese: フロアに魔王がいます, Hepburn: Furoa ni maō ga imasu) is a Japanese manga series written by Hato and illustrated by Masaki Kawakami.

It has been serialized in Media Factory's Monthly Comic Alive magazine since December 2014.

The series is licensed and published in North America by Seven Seas Entertainment.

The original manga is serialized in Media Factory's Monthly Comic Alive magazine.

[3] Seven Seas Entertainment have licensed and released the volumes in English starting from February 2017.