The Power Broker: Robert Moses and the Fall of New York is a 1974 biography of Robert Moses by Robert Caro. The book focuses on the creation and use of power in New York local and state politics, as witnessed through Moses's use of unelected positions to design and implement dozens of highways and bridges, sometimes at great cost to the communities he nominally served. It has been repeatedly named one of the best biographies of the 20th century, and has been highly influential on city planners and politicians throughout the United States. The book won a Pulitzer Prize in 1975.

Robert Moses was an American urban planner and public official who worked in the New York metropolitan area during the early to mid-20th century. Moses is regarded as one of the most powerful and influential people in the history of New York City and New York State. The grand scale of his infrastructure projects and his philosophy of urban development influenced a generation of engineers, architects, and urban planners across the United States.