Marco Antonio Pasqualini (stage name Malagigi; 25 April 1614 – 2 July 1691) was an Italian castrato opera singer who performed during the Baroque period. He has been described as "the leading male soprano of his day". Pasqualini joined the choir of the Sistine Chapel in 1630. He was also a composer, having written more than 250 arias and cantatas. Despite being historically addressed as a soprano, Pasqualini's vocal range extended no higher than B5. Thus, he was a mezzo-soprano by modern classification.