Juan E. Mezzich (born 1945) was the president of the World Psychiatric Association (WPA) from 2005 to 2008.
He currently works as the Professor of Psychiatry and Director at the Division of Psychiatric Epidemiology and International Center for Mental Health at the Mount Sinai School of Medicine, New York University.
He is also an editorial board member of 12 other psychiatric journals in the Americas and Europe.
Mezzich was born in 1945, in Lima, Perú, of Yugoslavian and Peruvian ancestries.
He received psychiatric residency training at Ohio State University and was the diplomate of the American Board of Psychiatry and Neurology, and has a Ph.D. in Mathematical and Statistical Psychology at the Ohio State University.