Robert Greenfield (born 1946) is an American author, journalist and screenwriter.
Greenfield began his career as a sports writer. He has published book reviews in New West magazine and The New York Times Book Review.
From 1970 to 1972 Greenfield was employed as an associate editor with Rolling Stone magazine's London bureau. During this time he interviewed numerous musicians and writers, including Jack Bruce, John Cale,Neil Young, Elton John, Nico, the Rolling Stones, Jackie Lomax, Leon Russell, Stone the Crows, Woody Allen and Germaine Greer. His 1971 interview with Keith Richards in the south of France at Villa Nellcôte, Villefranche-sur-Mer, was included in the book Exile, a collection of photographs by Dominique Tarlé, Genesis Publications (2001).
Greenfield was a popular music critic for Boston After Dark. He was an adjunct professor of composition and literature at the University of San Francisco, and has taught at Chapman University and Cabrillo College.
He worked as a freelance journalist for Eye and Cavalier magazine. A 1969 Eye article profiled early free-form radio at WFMU in East Orange, New Jersey and other locations. The magazines Esquire, Playboy, and GQ have published his short fiction.