Neko ni Tensei Shita Oji-san (ねこに転生したおじさん, "The Guy That Got Reincarnated as a Cat") is a Japanese manga series written and illustrated by Yajima.

Originally published as a web manga on Twitter and Instagram since February 2023, it was later picked up for serialization by Kadokawa Corporation, who then began serializing the series on their KadoComi website in October of the same year.

The series has been compiled into three tankōbon volumes by Kadokawa Shoten as of September 2024.

An anime television series adaptation by Studio Eight Colors premiered in October 2024.

It is animated by Studio Eight Colors and directed by Rio and Takahiro Kawakoshi,[6] and premiered on October 7, 2024 within the Poka Poka variety program on Fuji TV.