James Willett Moseley (August 4, 1931 – November 16, 2012) was an American observer, author, and commentator on the subject of unidentified flying objects (UFOs). Over his nearly sixty-year career, he exposed UFO hoaxes and engineered hoaxes of his own. He was best known as the publisher of the UFO newsletters Saucer News and its successor Saucer Smear, which became the longest continuously published UFO journal in the world.