Mark Evan Halperin (born January 11, 1965) is an American journalist, television cable host, and commentator for the conservative Newsmax TV. Halperin previously had worked as the political director for ABC News, where he also served as the editor of the Washington, D.C., newsletter The Note. In 2010, Halperin joined MSNBC, becoming the senior political analyst and a contributor. Along with John Heilemann, Halperin served as co-managing editor of Bloomberg Politics. Halperin and Heilemann co-wrote Game Change and Double Down: Game Change 2012, were co-hosts of MSNBC and Bloomberg's With All Due Respect, and produced and co-starred with Mark McKinnon in Showtime's The Circus: Inside the Greatest Political Show on Earth, which followed the presidential candidates behind the scenes of their campaigns in the 2016 United States Presidential Election.

In response to more than a dozen allegations of workplace sexual harassment and sexual assault at his prior position at ABC News, Halperin was fired by both Showtime Networks and NBC News towards the end of October 2017.

Since 2020, Halperin has appeared on Newsmax TV as a contributor and is the host of their weekly Sunday show, Mark Halperin's Focus Group.