The St. Gregory Hymnal and Catholic Choir Book is a comprehensive collection of sacred music compiled for use in Roman Catholic worship in the United States. It gathers hymns, motets, Masses, and other liturgical music for the parish choir and congregation.
Named for St. Gregory, the patron of church music, the volume reflects the movement to reform and elevate Catholic church music in the early twentieth century, favouring dignified and traditional settings. It served choirs and choirmasters as a practical and authoritative repertory for the liturgical year. As a substantial source of Catholic sacred song, it documents an important chapter in American church music.