Mongi Slim was a Tunisian diplomat who became the first African to become the President of the United Nations General Assembly in 1961. He received a degree from the faculty of law of the University of Paris. He was twice imprisoned by the French during the Tunisian struggle for independence.

The president of the United Nations General Assembly is a position voted by representatives in the United Nations General Assembly (UNGA) on a yearly basis. The president is the chair and presiding officer of the General Assembly.