William Perehudoff CM SOM RCA (April 21, 1918 – February 26, 2013) was a Canadian artist closely associated with colour field painting. He was married to the landscape painter Dorothy Knowles. Perehudoff's work has been represented in numerous public and private collections, including the National Gallery of Canada, Remai Modern in Saskatoon, the Canada Council Art Bank, the Glenbow Museum in Calgary, the Art Gallery of Ontario, and the Montreal Museum of Fine Art.