James Platten Vanderbilt (born November, 1975) is an American screenwriter.
A member of the Vanderbilt family of New York, he is the son of Alison Campbell (née Platten) and Alfred Gwynne Vanderbilt III. His paternal grandfather, Alfred Gwynne Vanderbilt II, once chaired the New York Racing Association, and his maternal grandfather, Donald Campbell Platten, was the chief executive and chairman of Chemical Bank.
Vanderbilt was raised in Norwalk, Connecticut and attended school in New Canaan, Connecticut. He is a graduate of the University of Southern California.