Niall Campbell Ferguson (; born 18 April 1964) is a British historian and works as a senior fellow at the Hoover Institution. Previously, he was a senior research fellow at Jesus College, Oxford, a visiting professor at the New College of the Humanities, and also taught at Harvard University.
Ferguson writes and speaks about international history, economic and financial history, and British and American imperialism. He is known for his contrarian views, like his defense of British empire. He once called himself "a fully paid-up member of the neo-imperialist gang" following the invasion of Iraq.Ferguson has been a contributing editor for Bloomberg Television and a columnist for Newsweek. He was an advisor to John McCain's U.S. presidential campaign in 2008, supported Mitt Romney in 2012 and was a vocal critic of Barack Obama.Ferguson has written and presented numerous television documentary series, including The Ascent of Money, which won an International Emmy award for Best Documentary in 2009. In 2004, he was named as one of TIME magazine's 100 most influential people in the world.