Maurice Galbraith Cullen (1866-1934) was a Canadian artist.
Cullen was born June 6, 1866 in St. John's, Newfoundland.
Beginning in January 1918, Cullen served with Canadian forces in the First World War. He came to the attention of Lord Beaverbrook, who arranged for him to be commissioned as an "official war artist" along with Frederick Varley, J.W. Beatty and C. W. Simpson.