Joshua Harris Prager (born 1971) is an American journalist and author.
Joshua Harris Prager was born in a Jewish family in Eagle Butte, South Dakota. Prager is the son of Columbia University physician and medical ethics expert Kenneth Prager, and the nephew of commentator Dennis Prager. He attended the Moriah School in Englewood, New Jersey, the Ramaz High School in Manhattan, and Columbia College, where he studied music theory.
In May 1990, Prager was paralyzed in a road accident in Israel when a truck driver rammed into the minibus in which he was riding.
Prager often writes of historical secrets. He found the reclusive heir of Margaret Wise Brown, author of the classic children's book Goodnight Moon. He confirmed the decades-long rumor that the New York Giants had stolen signs en route to the 1951 pennant. He revealed that baseball pitcher Ralph Branca (pitcher in the aforementioned baseball game) was born to a Jewish mother. He named the only anonymous winner in the history of the Pulitzer Prizes, the Iranian photographer Jahangir Razmi. He revealed the suicides of the parents of Swedish humanitarian Raoul Wallenberg. And he identified the anonymous patron in the famous book Joe Gould's Secret.
Prager has written for publications including Vanity Fair, the New York Times, and the Wall Street Journal, where he was a senior writer for eight years. His first book The Echoing Green: The Untold Story of Bobby Thomson, Ralph Branca and the Shot Heard Round the World, is about the Shot Heard 'Round the World, a famous 1951 baseball playoff game between the Brooklyn Dodgers and the New York Giants.