Pierre Hassner (31 January 1933, Bucharest, Romania - 26 May 2018, 15th arrondissement of Paris,[1]) was a geopolitical scientist and philosopher naturalized Romanian French.

Of Romanian Jewish origin,[2] Pierre Hassner moved to France in 1948 at the age of fifteen with his parents who were fleeing the communist regime.

In his Memoirs published in 1983, Raymond Aron wrote: "In I do not know what circumstances, Pierre Hassner, who sometimes attended my classes, gave a brilliant, dizzying presentation on Thucydides ...

In his numerous articles and books, he offered informed and original analyses of the evolution of international conflicts during the Cold War era, and after the fall of the Berlin Wall.

In his theories on totalitarianism and post-Cold War] world political evolution, he analyzed Chinese and Russian political regimes and, to qualify them, coined the neologism of "democrature", to denote States which are no longer under totalitarian regime but are not yet democracies and therefore hide their authoritarian nature under a democratic facade (parliamentary and constitutional democracy in Russia or in China).