Ewen Cameron Bruce (10 November 1890 – 16 April 1925) was a British Army officer who served with the Heavy Branch of the Machine Gun Corps (Tank Corps from July 1917) during the First World War. He was awarded the Military Cross for his conspicuous gallantry and devotion to duty in salvaging tanks under heavy shell fire at the Battle of Messines in July 1917 which resulted in him losing his left arm to a gunshot wound.