American novelist whose best-known works are Graustark (1901; filmed 1915 and 1925), a romantic novel set in a mythical middle European kingdom, and Brewster's Millions (1902; filmed 1914, 1921, 1935, 1945, and 1985), a comic fantasy about a man who must spend a large sum of money in a short period of time in order to earn his inheritance.

From early childhood, McCutcheon wrote stories and drew pictures. His younger brother John (McCutcheon, John T), whom he taught to draw, later became a well-known newspaper cartoonist. George McCutcheon attended Purdue University, West Lafayette, Indiana, briefly (1882–83), leaving to become a newspaper reporter. City editor of the Lafayette Daily Courier from 1893 to 1901, he resigned after Graustark achieved popular success. Even though McCutcheon's publishers had purchased the manuscript to Graustark outright for only $500, they later voluntarily paid him substantial royalties. Altogether, McCutcheon published some 40 works of fiction, including more swashbuckling tales of Graustark, such as Beverly of Graustark (1904; filmed 1916 and 1926) and The Prince of Graustark (1914; filmed 1916). His other novels include The Day of the Dog (1904), which features a dog as the villain, and Mary Midthorne (1911), a realistic tale of life in Indiana and McCutcheon's personal favourite of all his works.