Miodrag (Misha) Radulovacki, MD, PhD (Serbian Cyrillic: Миодраг Радуловачки; Serbian Latin: Miodrag Radulovački; 28 April 1933 – 26 May 2014), was a Serbian scientist and inventor. He is known for creating the Adenosine Sleep Theory. He taught as a Professor of Pharmacology at the University of Illinois at Chicago.