Siroco (S-72) was an Agosta-class submarine built for the Spanish Navy by Bazán at Cartagena, Spain.

Because of the economic crisis, the government didn't authorize the reparations of the submarine and was decommissioned on June 29, 2012.

On June 13, 1985, the submarine was in Cartagena's waters in a practice exercises and the only ship near was a Spanish destroyer Almirante Valdés.

On June 2, 2010 the S-72 was quoted in some Spanish press and radio, for photos taken of a merchant with suspect military equipment off the coast of Syria.

In May 2012, the cuts by the central government over the economic crisis made it impossible to invest at least €25 million in a contract with the shipyard of Navantia in Cartagena that had been postponed during the last two years and finale, the ship was decommissioned.