Alejandro Vicente López y Planes was an Argentine writer and politician who acted as interim President of Argentina from July 7 to August 18, 1827. He also wrote the lyrics of the Argentine National Anthem adopted on May 11, 1813.

The "Argentine National Anthem" is the national anthem of Argentina. Its lyrics were written by the Buenos Aires-born politician Vicente López y Planes and the music was composed by the Spanish musician Blas Parera. The work was adopted as the sole official song on 11 May 1813, three years after the May Revolution; 11 May is therefore now Anthem Day in Argentina.