Jason Joseph Mattera (born September 8, 1983) is an American writer, conservative activist, radio host, and Emmy-nominated journalist. Originally from New York City, Mattera started in conservative political activism as a student at Roger Williams University. In 2010, Mattera released his first New York Times bestseller, Obama Zombies. Mattera's second book, Hollywood Hypocrites, was published in 2012, and his third book, Crapitalism, was published in 2014, all by Simon & Schuster. Mattera was editor of Human Events magazine from 2010–12, and from 2010–13 hosted a weekend talk show on the New York City radio station 77 WABC.

In 2015, Mattera became a correspondent for the syndicated TV series Crime Watch Daily, which was produced and syndicated by Warner Bros. He has received two Emmy nominations for his work on the show.

Born in the New York City borough of Brooklyn, Mattera is of Italian and Puerto Rican descent. Mattera grew up in Sunset Park, Brooklyn and graduated from Bishop Ford Central Catholic High School in 2001. In 2005, Jason Mattera graduated summa cum laude from Roger Williams University with a Bachelor of Science degree in business management and communications.

In December, 2012, he married real estate broker and season 3 winner of The Apprentice Kendra Todd.

In 2010, Mattera wrote his first book, Obama Zombies: How the Liberal Machine Brainwashed My Generation. That book debuted at #14 on The New York Times best-seller list for hardcover non-fiction. Stephen Gutowski at Human Events praised the book, which he said "well chronicles how liberals have taken advantage of and brain-washed" college-aged voters. Ann Coulter called Obama Zombies "piercing, eye-opening, and deliciously witty" and said it "is required reading for an entire generation who have been sold liberal lies." In Obama Zombies, Mattera writes that "For an entire year, otherwise clear-thinking members of the most affluent, over-educated, information-drenched generation in American history fell prey to the most expensive, hi-tech, laser-focused marketing assault in presidential campaign history." "The result," he continued, was "an unthinking mass of young voters marched forward to elect the most radical and untested president in U.S. history."

In 2012, Mattera published his second book, Hollywood Hypocrites: The Devastating Truth About Obama's Biggest Backers. Like Mattera's first book, Hollywood Hypocrites was a New York Times bestseller. An ambush video intended to promote this book received significant attention. In mid-March 2012 Mattera confronted comedian Chris Rock at a Sundance Film Festival after party over remarks that Rock made calling the Tea Party movement racist. The video shows Rock lunging for the camera.^{[verification needed]} On why he wrote the book, Mattera says "It's time to recognize the marketing and fund-raising power the Hollywood Progressives wield. It's time to dig into the data and set the record straight. It's time to turn the media spotlight back on the image makers and prevent the Hollywood elite from hoodwinking American voters once again." The late Andrew Breitbart called Hollywood Hypocrites a "barrage of body blows to Hollywood's holier-than-thou limousine liberals," while Mark Levin praised the book as "eye-popping, exhaustively researched, and absolutely hilarious."

In 2014, Mattera published his third best-selling book, Crapitalism: Liberals Who Make Millions Swiping Your Tax Dollars, which "reveals the infuriating schemes that result when the filthy rich combine cronyism and capitalism" and, according to Mattera, "pulls back the curtain on a cast of cronyites who make millions taking advantage of taxpayers—and still brag about how they're looking out for the little guy." The American Spectator reviewed Crapitalism as a "full-throated utterly vernacular defense of free-markets."

Also in 2012, Jason Mattera wrote the foreword to the book Walk in Generational Blessings: Living a Legacy of Transformation Through Your Family by his father Joseph G. Mattera.