Choi Jae-seo (Korean: 최재서; Hanja: 崔載瑞; 11 February 1908 – 16 November 1964) was a South Korean literary scholar, a critic of English literature, and a novelist. He graduated from Keijō Imperial University (currently Seoul National University), received his M.A. from the University of London, and later taught at Yonsei University. As editor-in-chief of the literary magazine Humanities Review, he was a forerunner of progressive literary criticism. Although he later presided over pro-Japanese literary journals under pressure from the ruling Japanese, he undoubtedly remains an important figure in Korean modernism of the 1930s.