The 1915 Argentine Primera División was the 24th season of top-flight football in Argentina. The season began on April 4 and ended on January 1916. The reunification of the "Asociación Argentina de Football" and the "Federación Argentina de Football" brought the creation of a championship of 25 teams. The tournament took a league format with each team playing the others once.

Club Atlético Defensores de Belgrano is an Argentine sports club from Nuñez, Buenos Aires. The club is mostly known for its football team, which currently plays in Primera Nacional, the regionalised second division of the Argentine league system.