Pedro Aznar (born 23 July 1959) is an Argentine musician and singer-songwriter.

[1] He is well known for giving rock songs a jazz-oriented style, by playing the fretless bass, with a big influence from Jaco Pastorius.

He plays an important part in Argentine rock, where in the mid-1970s, he had various appearances with groups like Madre Atómica, Alas and Pastoral.

He became one of four members of Serú Girán in 1978, one of the most musically influential bands that dominated Argentina's rock circuit for the next four years.

Later he began his solo career, while also working scoring music to film soundtracks.