Matjaž Mulej (born Maribor, 20 January 1941) is a Slovenian academic.
He is a two-time Yugoslavian tennis champion and has been a sports official for more than 35 years.
Mulej worked as a full professor and scientific associate at the Institute for Entrepreneurship and Management of Small Businesses.
From 1987 to 1991 he was the Dean of the Faculty of Economics and Business and Vice-Rector of the University of Maribor.
[4][3] He retired from University of Maribor as Professor Emeritus in Systems and Innovation Theory.