Timothy L. O'Brien (born 1961) is an American journalist.
Early life and education
Born in Illinois, O'Brien is a graduate of Loyola Academy and Georgetown University, where he studied literature. He has three master's degrees from Columbia University, in history, journalism, and business.
O'Brien was a reporter for the New York Times before becoming its Sunday Business editor in 2006. O'Brien has written two nonfiction books: 1998's Bad Bet: The Inside Story of the Glamour, Glitz, and Danger of America's Gambling Industry (ISBN 0-8129-2807-5) and 2005's TrumpNation: The Art of Being The Donald (ISBN 0-446-57854-1). He contracted with Random House for a series of historical novels during the period between the American Civil War and World War I. His novel The Lincoln Conspiracy (ISBN 978-0-345-49677-5) was published in 2012. He is the executive editor of The Huffington Post and has written for The Wall Street Journal and Talk Magazine.