Cuarteto (Spanish: quartet), sometimes called cuartetazo, is a musical genre born in Córdoba, Argentina.

The roots of the cuarteto ensemble are in Italian and Spanish dance ensembles. The name was coined because the early dance-hall numbers were invariably four-piece bands (violin-piano-accordion-bass).

Cuarteto is almost always upbeat; its rhythm range is similar to that of modern Dominican merengue.

In the 1970s, cuarteto became one of the cornerstones of Córdoba's cultural identity—together with Hortensia magazine. Both reflected a local brand of popular culture overlooked by the establishment, and proposed an alternative to the Buenos Aires-centered culture that television was spreading to the rest of the country.

Cuarteto was one of the genres that gave birth to the Buenos Aires tropical scene, which was renamed as bailanta in the 1990s following the usage of Corrientes province.