Markus Barth (6 October 1915 – 1 July 1994) was a Swiss scholar of theology. He lived in Bern, Basel, Berlin, and Edinburgh and was the son of the seminal Protestant theologian Karl Barth. From 1940 to 1953 he was a Reformed Pastor in Bubendorf near Basel. In 1947 he received a doctorate in New Testament from the University of Göttingen. Between 1953 and 1972 he held professorships in New Testament at Dubuque Theological Seminary, University of Chicago Divinity School, and Pittsburgh Theological Seminary. From 1973 to 1985 he was professor of New Testament at the University of Basel.