Tragic Week (in Catalan la Setmana Tràgica, in Spanish la Semana Trágica) (25 July – 2 August 1909) was a series of violent confrontations between the Spanish army and anarchists, freemasons, socialists and republicans of Barcelona and other cities in Catalonia, Spain, during the last week of July 1909.

It was caused by the calling-up of reserve troops by Premier Antonio Maura to be sent as reinforcements when Spain renewed military-colonial activity in Morocco on 9 July, in what is known as the Second Rif War.

The incident began when a party of conscripts, destined for Morocco, boarded ships owned by the marquess of Comillas, a prominent Catholic industrialist.

The soldiers were the subject of patriotic addresses, the playing of the Royal March, and the distribution of religious medals by well dressed ladies.

The conscripts remained silent but many of the onlookers jeered and whistled, and emblems of the Sacred Heart were thrown into the sea.