Cláudio Franco de Sá Santoro (23 November 1919 – 27 March 1989) was an internationally renowned Brazilian composer, conductor and violinist.

A native of Manaus, the capital of Amazonas, Santoro started to study violin and piano as a child.

His prolific output was mostly instrumental and includes fourteen symphonies, three piano concertos and seven string quartets.

Claudio Santoro died in Brasília in March 1989 at the age of 69 while conducting the rehearsal of a concert scheduled to commemorate the 14 July bicentennial of the French Revolution.

He won a 1948 prize of The Lili Boulanger Memorial Fund at the University of Massachusetts, in Boston[1] (the judges included the composers Igor Stravinski and Aaron Copland).