Judith Miller (born January 2, 1948) is an American journalist and commentator who is known for writing about Iraq's alleged weapons of mass destruction (WMD) program both before and after the 2003 invasion, but her writings were later discovered to have been based on fabricated intelligence. She worked in the Washington bureau of The New York Times before joining Fox News in 2008.

Miller co-wrote a book Germs: Biological Weapons and America's Secret War, which became a top New York Times best seller shortly after she was a victim of a hoax anthrax letter at the time of the 2001 anthrax attacks.

The New York Times determined that several stories she wrote about Iraq were inaccurate, and she was forced to resign from the paper in 2005. According to commentator Ken Silverstein, Miller's Iraq reporting "effectively ended her career as a respectable journalist". Miller defended her reporting, stating "My job isn't to assess the government's information and be an independent intelligence analyst myself. My job is to tell readers of The New York Times what the government thought about Iraq's arsenal." She published a memoir, The Story: A Reporter's Journey, in April 2015.

Miller was involved in the Plame Affair, where Valerie Plame was outed as a Central Intelligence Agency (CIA) spy by Richard Armitage after Plame’s husband published a New York Times op-ed casting doubts on claims that Saddam Hussein sought to purchase uranium from Africa. Miller spent 85 days in jail for refusing to reveal that her source in the Plame Affair was Scooter Libby, chief of staff to Vice President Dick Cheney. Later, she contributed to the conservative Fox News Channel and Newsmax, and was a fellow at the conservative Manhattan Institute.

Miller was born in New York City. Her Russian-born father, Bill Miller, was Jewish. He owned the Riviera night club in New Jersey and later, he operated several casinos in Las Vegas. Bill Miller was known for booking iconic Las Vegas performers. His biggest success was getting Elvis Presley to return to Las Vegas after initially being an unsuccessful booking. Her mother was a "pretty Irish Catholic showgirl."

Miller attended Ohio State University, where she was a member of the Kappa Alpha Theta sorority. She graduated from Barnard College of Columbia University in 1969 and received a master's degree in public affairs from Princeton University's School of Public and International Affairs. Early in her career at The New York Times bureau in Washington, D.C. she dated one of the newspaper's other reporters (and future investment banker) Steven Rattner. In 1993, she married Jason Epstein, an editor and publisher.

Judith Miller is the half-sister of Jimmy Miller who was a record producer for many classic rock bands of the 1960s through to the 1990s including the Rolling Stones, Traffic and Blind Faith.^{[circular reference]}

During Miller's tenure at The New York Times, she was a member of the team that won the Pulitzer Prize for Explanatory Reporting, for its 2001 coverage of global terrorism before and after the September 11 attacks. She and James Risen received the award and one of the cited articles appeared under her byline.