Frederick Horsman Varley (January 2, 1881 – September 8, 1969) was a member of the Canadian Group of Seven.
 Varley was born in Sheffield, England, in 1881, the son of Lucy (Barstow) and Samuel James Smith Varley the 7th. He studied art in Sheffield and attended the Académie Royale des Beaux-Arts in Antwerp (1900-1902), Belgium, while he worked on the docks. He immigrated to Canada in 1912 on the advice of another Sheffield native (and future Group of Seven member), Arthur Lismer, and found work at the Grip Ltd. design firm in Toronto, Ontario.
 Beginning in January 1918, he served in the First World War with C.W. Simpson, J.W. Beatty and Maurice Cullen.  Varley came to the attention of Lord Beaverbrook, who arranged for him to be commissioned as an official war artist.  He accompanied Canadian troops in the Hundred Days offensive from Amiens, France to Mons, Belgium.  His paintings of combat are based on his experiences at the front. Although he had been enthusiastic to travel to France as a war artist, he became deeply disturbed by what he saw, saying:
 We’d be healthier to forget [the war], and that we never can. We are forever tainted with its abortiveness and its cruel drama. Varley's Some Day the People Will Return, shown at Burlington House in London and at the Canadian War Memorials Exhibition, is a large canvas depicting a war-ravaged cemetery, suggesting that even the dead cannot escape the destruction.
 In Varley's painting For What? (1918), a single gravedigger takes a rest from his labours, a cart full of bodies beside him. It is one of the few official Canadian First World War paintings that does not hide the reality of battlefield death in images of ruins, blasted trees, and battle detritus.
 In 1920, he was a founding member of the Group of Seven. He was the only original member of the Group of Seven to specialize in portraiture, but he also painted landscapes. Varley's major contribution to art is his work with the Group of Seven and his portraits.
  After living in Ontario for a number of years, Varley moved to Vancouver, BC in 1926 where he became Head of the Department of Drawing and Painting at the School of Decorative and Applied Arts in Vancouver at the invitation of Charles Hepburn Scott. He remained in this position from 1926 until 1933.
 In British Columbia, he painted images of mountains and mountainsides, drawing upon several influences from Chinese painting to William Turner and Samuel Palmer. He left in 1936 due to his experiences with depression, and two years later joined fellow artist Terry M. Shortt, the Royal Ontario Museum ornithologist, on a trip to the Arctic in 1938. In 1954, along with a handful of artists including Eric Aldwinckle, he visited the Soviet Union on the first cultural exchange of the Cold War.
 He died in Toronto in 1969 and was buried alongside other members of the Original Seven at the McMichael Canadian Art Collection grounds in Kleinburg, Ontario.
 Varley was an associate member of the Royal Canadian Academy of Arts.
 In Unionville, the Varley Art Gallery of Markham is named after him, as is Fred Varley Drive, a two-lane residential street. Varley lived nearby at the Salem-Eckhardt House from 1952 to 1969.
 On 6 May 1994 Canada Post issued 'Vera (detail), F.H. Varley, 1931' in the Masterpieces of Canadian art series. The stamp was designed by Pierre-Yves Pelletier based on an oil painting Vera, (1931) by Frederick Horsman Varley in the National Gallery of Canada, Ottawa, Ontario. The 88¢ stamps are perforated 14 x 14.5 mm and were printed by Leigh-Mardon Pty Limited.
 His place in the art history of Canada is verified by the government's decision to reproduce his self-portrait as a 17-cent postage stamp. On 22 May 1981 Canada Post issued 'Frederick H. Varley, Self Portrait' designed by Pierre Fontaine. The stamps are based on an oil painting Self Portrait, (circa 1945) by Frederick Horsman Varley in the Hart House Permanent Collection, University of Toronto, Toronto, Ontario. The 17¢ stamps are perforated 12.5 mm and were printed by Ashton-Potter Limited.
 Varley has been designated as an Historic Person in the Directory of Federal Heritage Designations.
 At the Cowley Abbott Auction of An Important Private Collection of Canadian Art, December 6, 2023, lot 105, Varley's Sun and Wind, Georgian Bay, 1916 or 1920, oil on panel, mounted to plywood, 12.25 x 16.25 ins (31.1 x 41.3 cms), Auction Estimate: $70,000.00 - $90,000.00, realized a price of $984,000.00.