Fifth Business

Fifth Business is a 1970 novel by Canadian playwright, critic, journalist, and professor Robertson Davies. It is the first instalment of the Deptford Trilogy and is a story of the life of the narrator, Dunstan Ramsay. It is Davies' best-known novel, and considered his finest.

First published by Macmillan of Canada in 1970, Fifth Business was selected 40th on the American Modern Library's "reader's list" of the 100 best novels of the 20th century.