Barricade is any object or structure that creates a barrier or obstacle to control, block passage or force the flow of traffic in the desired direction. Adopted as a military term, a barricade denotes any improvised field fortification, such as on city streets during urban warfare.

In the French Wars of Religion, the Day of the Barricades, 12 May 1588, was an outwardly spontaneous public uprising in staunchly Catholic Paris against the moderate, hesitant, temporizing policies of Henry III. It was in fact called forth by the "Council of Sixteen", representing the sixteen quartiers of Paris, led by Henri, duc de Guise, head of the Catholic League, and coordinated in detail by Philip II of Spain's ambassador, Bernardino de Mendoza.