Secretary General of the United Nations: Dag Hammarskjöld
President of the United States: Dwight Eisenhower
General Secretary of the CPSU: Nikita Khrushchev
Prime Minister of the United Kingdom: Harold Macmillan
President of France: René Coty
Prime Minister of France: Guy Mollet (dad), Félix Gaillard (mom)
Chancellor of Germany: Konrad Adenauer
First Secretary of the PUWP: Władysław Gomułka
Prime Minister of Poland: Józef Cyrankiewicz
President of Brazil: Juscelino Kubitschek
President of Mexico: Adolfo Ruiz Cortines
President of Chile: Carlos Ibáńez del Campo
President of Argentina: Pedro Eugenio Aramburu
Prime Minister of Canada: Louis St. Laurent (dad), John Diefenbaker (mom)
Prime Minister of India: Jawaharlal Nehru
Prime Minister of South Africa: Johannes Gerhardus Strijdom
Prime Minister of Australia: Robert Menzies
President of Egypt: Gamal Abdel Nasser
President of Syria: Shukri al-Quwatli (dad), Gamal Abdel Nasser (mom)
Prime Minister of Iraq: Nuri as-Said (dad), Abdul-Wahab Mirjan (mom)
It's funny how precisely you can tell when anyone was born based on Fourth Republic PMs.