Okan Kadri Ersoy (born September 5, 1945 in İstanbul, Turkey) is a professor of electrical engineering and Director of Statistical and Computational Intelligence Laboratory at Purdue University, West Lafayette School of Electrical and Computer Engineering. He is a Fellow of IEEE, a Fellow of OSA and a Fellow of . Ersoy contributed to the research and education in computer science and engineering, artificial intelligence and bioinformatics. He is on the editorial boards of and . He is also on the advisory board of .