Sir Paul Roderick Clucas Marshall is a British hedge fund manager. According to the Sunday Times Rich List in 2020, he had an estimated net worth of £630 million.

The Orange Book: Reclaiming Liberalism is a book written by a group of prominent British Liberal Democrat politicians and edited by David Laws and Paul Marshall in 2004. Three contributors later became leaders of the Liberal Democrats: Nick Clegg, Vince Cable and Ed Davey. Other contributors include Chris Huhne, Susan Kramer, Mark Oaten and Steve Webb. The book's central philosophy, and some of its ideas, are supported by Liberal Reform, an internal group of the Liberal Democrats.