Tramontana (S74) is an Agosta-class submarine built for the Spanish Navy by Bazán at Cartagena, Spain. The submarine was launched in 1984, commissioned in 1985, and is currently active with the Spanish Navy. On March 22, 2011, it was deployed as part of Spanish contribution to the multi-national task force enforcing UN resolution 1973 "to take all necessary measures to protect civilians under threat of attack" in Libya.