Antimo Liberati (3 April 1617 – 24 February 1692) was an Italian music theorist, composer, and contralto singer.

From 1637 to 1643 Liberati was a court musician in the service of Emperor Ferdinand III and Archduke Leopold in Vienna.

He was appointed a member of the Sistine Chapel Choir in 1662, served as its secretary (puntatore) in 1670 and its maestro di cappella in 1674 and 1675.

However, he was primarily known for his writings on music theory, especially Epitome della musica (1666) and Lettera scritta dal sig.

[1][2][3][4] Liberati died in Rome at the age of 74 and was buried in the tomb of the papal singers in Santa Maria in Vallicella.