Juan Luis Manzur (born 8 January 1969) is an Argentine surgeon and politician currently serving as a National Senator for Tucumán Province. A member of the Justicialist Party, he previously served as Chief of the Cabinet of Ministers from 2021 to 2023, under President Alberto Fernández. He previously served as Minister of Health of Argentina from 2009 to 2015, and as Governor of Tucumán from 2015 to 2021.

Manzur was born in San Miguel de Tucumán to a Maronite Catholic father from Lebanon and an Argentine mother. He received a medical degree from the University of Tucumán and completed his residency at the public Álvarez Hospital, in Buenos Aires. Manzur later received a master's degree in Health Systems and Services Administration from the University of Buenos Aires.^[2]

Following a stint as Vice Minister of Health for the Province of San Luis, in 2002 he was named Public Health Secretary of the District of La Matanza, a western, mainly blue-collar suburb of the Argentine capital. Recommended by the National Health Minister, Ginés González García, Manzur was appointed Health Minister of Tucumán Province by the new Governor, José Alperovich, in 2003. Manzur soon earned plaudits in his post, which oversaw public health in one of Argentina's least-developed provinces.^[3] One widely used yardstick of public health, the infant mortality rate, fell from 23 per 1,000 births (40% above the national average) in 2003, to 13 in 2006 (matching the national average).^[4][5] The perinatal mortality rate (a late fetal death, or of an infant under one week old) likewise fell during the same period in Tucumán from 24 to 18 per 1,000 births.^[4][6] These news helped Manzur secure Governor Alperovich's nod to be a running mate for his successful, 2007 bid for re-election.