Michael Francis Moore (born April 23, 1954) is an American filmmaker, author and liberal political commentator. He is the director and producer of Bowling for Columbine, Fahrenheit 9/11, Sicko, and Capitalism: A Love Story, four of the top six highest-grossing documentaries of all time. In September 2008, he released his first free movie on the Internet, Slacker Uprising, documenting his personal crusade to encourage more Americans to vote in presidential elections. He has also written and starred in the TV shows TV Nation and The Awful Truth.

Moore is a self-described liberal who has criticized globalization, large corporations, assault weapon ownership, the Iraq War, U.S. President George W. Bush and the American health care system in his written and cinematic works. In 2005 Time magazine named him one of the world's 100 most influential people. Also in 2005, Moore started the annual Traverse City Film Festival in Traverse City, Michigan. In 2008, he closed his Manhattan office and moved it to Traverse City, where he continued work on new films.

Moore was born in Flint, Michigan and raised in Davison, a suburb of Flint, by parents Veronica, a secretary, and Frank Moore, an automotive assembly-line worker. At that time, the city of Flint was home to many General Motors factories, where his parents and grandfather worked. His uncle was one of the founders of the United Automobile Workers labor union and participated in the Flint Sit-Down Strike. Moore has described his parents as "Irish Catholic Democrats, basic liberal good people."