Coordinates: 43°49′23″N 111°47′7″W / 43.82306°N 111.78528°W / 43.82306; -111.78528 Brigham Young University–Idaho (BYU–Idaho or BYU–I) is a private university located in Rexburg, Idaho. Founded in 1888, the university is owned and operated by The Church of Jesus Christ of Latter-day Saints (LDS Church), and transitioned from a junior college to a four-year institution in 2001, known for the greater part of its history as Ricks College.

BYU-Idaho offers programs in liberal arts, engineering, agriculture, management, and performing arts. The university is broadly organized into six colleges, and its parent organization, the Church Educational System, sponsors sister schools in Utah and Hawaii. The university's sole focus is on undergraduate education, hosting 17 associates and 70 bachelors degree programs; and it operates using a three-semester system also known as "tracks".

Students at BYU-Idaho are required to follow an honor code, which mandates behavior in line with LDS teachings (e.g., academic honesty, adherence to dress and grooming standards, and abstinence from extramarital sex and from the consumption of drugs and alcohol). Approximately 99% of the university's 14,000 students are members of the LDS Church, and 40% of the student body takes a two-year hiatus from their studies at some point to serve as missionaries. A BYU-Idaho education is also less expensive than at similar private universities since approximately 70% of tuition is funded by LDS Church tithing funds.

Since becoming a four-year institution, BYU-Idaho no longer hosts intercollegiate athletic teams but instead organizes intracollegiate programs.