The Harper Prize was an award introduced in 1923 by Harper & Brothers, an American publishing company located in New York City.
The award was presented to the best novel by an "a writer who hitherto had not found a wide audience". A number of the awarded books won the Pulitzer Prize for Fiction, and many were adapted into films.
The first winner of the prize in 1923 was Margaret Wilson, who won the Pulitzer Prize the following year.
Winners of the Harper Prize included: