Srećko Matko Džaja (born 29 October 1935) is a Bosnian Croat-German historian, medievalist and ottomanist.
He finished elementary school in 1947 in Dolac, Travnik and attended gymnasiums in Livno (1947–48), Dubrovnik (1948–49) and Visoko (1949–56), where he graduated.
His education was disrupted due to military service in the Yugoslav People's Army in Leskovac, Serbia from 1960 to 1962.
In the meantime, from 1965 to 1971, Džaja was a docent at the Franciscan Theology in Sarajevo, and after earning the Ph.D. in 1971, he was promoted to a rector of the said school in 1973 and held that post till 1975.
[1] In 1975, Džaja left the Franciscan order and the professorship and went to Western Germany where he enrolled at the Ludwig Maximilian University of Munich to study history, political philosophy, and Slavic philology.