The Champ de Mars is a vast public area in Paris, France, located in the 7th ''arrondissement'', between the Eiffel Tower to the northwest and the École Militaire to the southeast.
Its name means "Field of Mars", from Mars the Roman god of war, because it was originally used for military training.
The Champ de Mars formed the setting of a massacre during the French Revolution on July 17, 1791.