San Marino in the Eurovision Song Contest 2024

San Marino was represented at the Eurovision Song Contest 2024 with the song "11:11", performed by the Spanish band Megara. The song was written by Isra Dante Ramos Solomando, Roberto la Lueta Ruiz, and Sara Jiménez Moral. The nation's participating broadcaster, San Marino RTV (SMRTV), organised the national final format Una voce per San Marino in collaboration with Media Evolution S.r.l. to select its entry. Over 700 candidate entries from 31 countries were submitted for consideration to the event, which consisted of five semi-final rounds, a second chance round and a final round, all airing in February 2024.

Promotion of the entry consisted of a tour of a selection of nations participating in the contest, including Denmark, England, Spain, Sweden and the Netherlands. San Marino was drawn to compete in the second semi-final of the contest, which took place on 9 May 2024. Performing during the show at position 10 in the running order, "11:11" did not qualify to compete in the final. It placed 14th out of the 16 participating countries in its semi-final and received 16 points total.