Aleksandar Ugrenović (November 6, 1883 – November 19, 1958) was a university professor in forestry from Croatia and Yugoslavia, and a member of the Yugoslav Academy of Sciences and Arts. Ugrenović was born in Petrinja (then Kingdom of Croatia-Slavonia). He graduated from the Faculty of Forestry (1904) and the Faculty of Philosophy (1907) of the University of Zagreb. He attained a doctoral degree from the Faculty of Philosophy in 1907. In the 1907–21 period he worked as a forester in Osijek, Slatina and Pakrac. Aleksandar Ugrenović died in Zagreb, at the time in SR Croatia.