Bertram Brooker (March 31, 1888 - March 22, 1955) was a Canadian writer, painter, musician, and advertising agency executive.
Born in Croydon, England, to Richard Brooker and Mary Ann (Skinner) Brooker, he moved to Portage la Prairie, Manitoba in 1905 with his family. In 1913 he rented a movie theatre in Neepawa, Manitoba. In 1914 he became editor of the Portage Review, a local newspaper. In 1915 he enlisted in the Royal Canadian Engineers in Winnipeg. After the war he worked for the Winnipeg Tribune, the Regina Leader-Post and the Winnipeg Free Press.
He moved to Toronto in 1921. In 1921 he joined the staff of Marketing magazine, becoming its editor and publisher from 1924 until 1926. In 1923 he published his first book, Subconscious Selling. In 1929 he joined the staff of the J.J. Gobbons Advertising Agency.
He won the 1936 Governor General's Awards for Think of the Earth. In 1940 he joined the staff of the MacLaren Advertising Co.
He is regarded as the first Canadian abstract impressionist. He was strongly influenced in his development as an artist by LeMoine Fitzgerald.
In 1913 he married Mary Aurilla Porter.