Mediaweek is an Australian trade news website covering the media, marketing, and advertising industries. Founded in 1990 as a weekly print magazine, it transitioned to digital-only publishing in 2017.

The site reports on developments across Australia's television, radio, newspaper, magazine, and outdoor advertising sectors.

It is known for its editorial coverage, podcast productions, and industry events, including the flagship Mediaweek 100 and Mediaweek Next of the Best Awards.

Since 2004, it has also produced a weekday email newsletter titled the Mediaweek Morning Report.

Mediaweek was founded by Philip Luker, an Australian publisher, in 1990, and was later expanded to cover the broader entertainment media industry.

In 1999, James Manning purchased the title from Luker and became editor and publisher, marking the beginning of a nearly 25-year tenure. During this period, the magazine developed a strong reputation as a leading trade publication within Australia's media sector.

Regular features in the print edition included Person of the Week, Inside News Brands, Inside Radio, Inside Magazines, Inside Digital, Inside Television, and Inside Subscription TV. The magazine also ran a photo spread of industry events and the column "Media People", which tracked personnel changes across the media landscape. It regularly published radio ratings and readership figures for newspapers and magazines.

Mediaweek ceased printing its magazine at the end of 2017, transitioning to a digital-only publication.