The University of Utah (Utah) Utes and the Brigham Young University (BYU) Cougars have a longstanding intercollegiate rivalry. The annual college football game is frequently referred to as the Holy War. In the 1890s, when BYU was still known as Brigham Young Academy (BYA), the two schools started competing athletically. The schools have met continually since 1909 in men's basketball, and met once a year in football from 1922-2013, with the exception of 1943–45 when BYU did not field a team due to World War II. Both schools formerly competed in the Mountain West Conference, but both teams left the MWC in 2011—Utah joined the Pac-12 Conference and BYU became a football independent while joining the West Coast Conference for other sports.

There are several conditions which foster the rivalry: proximity of the two schools, successes of the academics and athletic teams, and religion. BYU is owned and operated by The Church of Jesus Christ of Latter-day Saints (LDS Church), while Utah is a secular institution and the flagship university of the state's System of Higher Education.