Kadokawa Key-Process Co., Ltd. (株式会社KADOKAWA KEY-PROCESS, Kabushiki-gaisha Kadokawa Key Process) is the publishing arm of Kadokawa Corporation, publishing manga, novels, light novels, magazines, tabletop role-playing games and other type of content with eight different publishing brand companies that previously merged with it.

The company inherited the management and integration businesses within Kadokawa Shoten Publishing in January 2007.

Kadokawa Production was dissolved and integrated into the General IP Business Headquarters.

[4][5] On December 30, 2013, Kadokawa had announced that the company has acquired 100% of publisher Choubunsha.

On January 25, 2024, Kadokawa announced that it would acquire a majority stake in Vega from Média-Participations.