Charles Dupee Blake (1819–1895) was an American composer and music educator, primarily known for his contributions to the sacred music genre. He was particularly influential in the development of hymnody and choral music in the 19th century. Blake's most notable works include "The New National Song Book," a collection that featured a variety of hymns and songs designed for congregational singing. Blake was also associated with the establishment of the American musical landscape through his role as a music educator, teaching at various institutions and contributing to the curriculum of music education. His compositions often incorporated elements of folk music, making them accessible and appealing to a wide audience. His impact on music can be seen in the way he helped shape the hymn-singing tradition in American churches, promoting a style that blended European classical influences with American folk elements. Blake's work laid the groundwork for future generations of composers in the sacred music genre, and his efforts in music education helped raise the standards of music literacy in the United States during his time.