MediaPost Communications is a United States-based company that reports and disseminates news and information related to the advertising and media industries. Founded in 1996, its products include a website (mediapost.com), two print magazines (MEDIA and OMMA), more than 70 email newsletters, and 40+ annual industry summits and conferences.

MediaPost employs industry journalists Joe Mandese, Bob Garfield, Barbara Lippert, Steve Smith, Steve McClellan, P.J. Bednarski and Adam Buckman. MediaPost's journalists have appeared on television programs such as NBC Nightly News, NBC Today Show, and CBS Evening News and have been quoted in publications such as The New York Times, Forbes, and others.

MediaPost distributes its content via 70 niche-specific newsletters, covering the topics of Marketing, Agency News, Television, Programmatic, Search, Email, Video, Mobile and Digital Publishing, and others. They also produce special-edition coverage of industry events, including "International CES", "SXSW", and "Cannes Lions".

MediaPost also produces over 40 advertising industry events each year, including their Insider Summit series and one-day shows adjacent to larger industry gatherings such as "SXSW", and "New York International Auto Show." Their events have featured speakers such as Al Gore, Mark Cuban, Arianna Huffington, and Martha Stewart.