The Mass for Five Voices is a choral Mass setting by the English composer William Byrd (c. 1540–1623). It was probably written c. 1594 during the reign of Queen Elizabeth I, and is one of three settings of the Mass Ordinary which Byrd published in the early 1590s. It consists of the text of the Mass (Kyrie, Gloria, Credo, Sanctus and Agnus Dei) set for a five-part choir.