Jacques Barzun (1907–2012), French-born American historian; Jacques Beckers (born 1934), Dutch-born American astrophysicist; Jacques Brel (1929–1978), Belgian singer and songwriter; Jacques Brinkman (born 1966), Dutch field hockey player and coach; Jacques-Yves Cousteau (1910–1997), French underwater explorer;

Jean-Jacques Rousseau (UK: / ˈ r uː s oʊ /, US: / r uː ˈ s oʊ / French: [ʒɑ̃ ʒak ʁuso]; 28 June 1712 – 2 July 1778) was a Genevan philosopher, writer, and composer. His political philosophy influenced the progress of the Enlightenment throughout Europe, as well as aspects of the French Revolution and the development of modern political, economic, and educational thought.