Donald Edward Newhouse (born 1930) is an American heir, business magnate and philanthropist. Together with his brother Samuel, he owns Advance Publications, founded by their late father in 1922, whose properties include Condé Nast (publisher of such magazines as Vogue, Vanity Fair, The New Yorker, etc.), dozens of newspapers across the United States (including The Star-Ledger, The Plain Dealer, The Oregonian, etc.), cable company Bright House Networks and a controlling stake in Discovery Communications.
According to Forbes, with an estimated net worth of $10.5 billion, Newhouse is the 2nd richest resident of New Jersey and the 56th richest person in the United States. He resides in New York City.