Nuestra Canción 4

Nuestra Canción 4 was the fourth edition of Nuestra Canción, which selected Spain's entry for the Mediterraneanvision Song Contest 13. The contest was held at the Palacio Vistalegre in Madrid.

The winner was Belén Aguilera with her song "Antagonista". Runner-up were Las Ketchup with their song "Aserejé (The Ketchup Song)".

Competing entries
On 19 January 2023, RTVE announced that the national selection would be revived in order to select the next Spanish representative for the Mediterraneanvision Song Contest. The broadcaster revealed that eight entries would be competing in Nuestra Canción 4.

Semi-final
Eight entries participated in the semi-final. Belén Aguilera and Las Ketchup advanced to the final.

Final
Two entries participated in the final. After winning the duel, Belén Aguilera will represent Spain at Mediterraneanvision Song Contest 13.