Smilja Marjanovic-Dušanic (Serbian Cyrillic: ????? ??????????-???????; born 29 March 1963) is a Serbian historian and professor at the University of Belgrade Faculty of Philosophy.
She is specializing in medieval studies.Marjanovic-Dušanic was born in Belgrade, SR Serbia, SFR Yugoslavia.
She received her Master's degree in 1986, and Master of Advanced Studies in 1991, from the University of Belgrade.
Awarded with a Doctorate in 1996 with the work Vladarska ideologija Nemanjica: diplomaticka studija, she started working as a Docent in the Department of History at the Belgrade Faculty of Philosophy the next year.