The Peaceable Kingdom: An American Saga (1972) is a historical novel in two parts by the Dutch Quaker author Jan de Hartog. It describes the first meeting of George Fox and Margaret Fell, the latter's conversion, and a portion of the history of colonial Pennsylvania. The novel is split between two time frames and settings, 1652–53 in England and 1754–55 in Pennsylvania.
Martin Tucker, in a long review for The New York Times, describes the novel as a "moving story" but finds its discussion of Quaker philosophy to be overly simplified, noting a general "absence of intellectual depth"; he praises the novel's characterisations, particularly of Margaret Fell as a "complex, passionate, vibrant woman."