MediaWorks, Inc. (株式会社メディアワークス, Kabushiki-gaisha MediaWākusu) was a Japanese publishing company in the Kadokawa Group known for their Dengeki (電撃, meaning electric shock) brand magazines and book labels.

At the same time, Tsuguhiko was the president of Kadokawa's subsidiary Kadokawa Media Office which was in charge of publishing video game magazines like Comptiq, and manga magazines targeted towards the male otaku crowd in Japan centered around "media mix" Japanese series where many different forms of media are published for a given series.

MediaWorks became a member of Kadokawa Group Holdings, and after Enterbrain became a member of the same group, Enterbrain's Famitsu line and MediaWorks' Dengeki line started to compete against each other, especially in terms of presenting information pertaining to bishōjo games.

By 2001, MediaWorks specialized in publishing light novels, manga, video games, and magazines pertaining to such media.

Earlier games like Emerald Dragon and Ojōsama Express were ported to the PC Engine, Super Famicom, Sega Saturn, and PlayStation.

A section of MediaWorks known as DS Dengeki Bunko produced sound novels playable on the Nintendo DS based from light novels published under MediaWorks' Dengeki Bunko publishing label.