K. Newell Dayley (born 1939) is a prominent Latter Day Saint composer, hymnwriter and musician. He is a professor of music at Brigham Young University (BYU) and currently serves as the associate academic vice president for undergraduate studies at that institution. Dayley is married to Diane Wilcox and they are the parents of eight children. Dayley received his bachelors degree from BYU in 1964. He received his MM degree from the University of Southern California in 1966 and a DA from the University of Northern Colorado in 1986.