In most denominations of the Latter Day Saint movement, a high priest is an office of the priesthood within the Melchizedek priesthood. High priests are typically more experienced leaders within the priesthood. The term derives in part from the Epistle to the Hebrews, which describes Jesus as "a high priest after the order of Melchizedek" (5:10; see also 6:20). Movement founder Joseph Smith ordained the first high priests on June 3, 1831.
High priests are organized into quorums. The first president of a high priests quorum of the church was Smith's younger brother, Don Carlos Smith.
In The Church of Jesus Christ of Latter-day Saints (LDS Church), high priests are primarily responsible for the spiritual welfare of the members and the administration of local church units called wards and stakes.
Melchizedek priesthood holders in the church are ordained high priests when they become a member of a stake presidency, stake high council, or bishopric, "or when otherwise determined by the stake president". Ordinations are approved by the member's bishop and stake president and the common consent of the general priesthood membership in the stake. A man must hold the Melchizedek priesthood and hold the priesthood office of elder before he may become a high priest. Ordination is done by another high priest by the laying on of hands.
Like other priesthood offices in the LDS Church, high priests are organized into quorums. The high priests quorum is organized at the stake level, with the president of the quorum being the stake president. (In contrast, priesthood quorums for the offices of deacon, teacher, priest, and elder are organized at the ward level.) Prior to the church's April 2018 General Conference, the stake president would organize a high priest "group" in each ward. Each group was provided with a group leader, who typically selected two assistants and a secretary to assist him. However, following changes announced in general conference, the high priest group were to disband at the ward level. The high priest quorum on the stake level henceforth would consist of high priests currently serving in the stake presidency, as a high councilor, in a bishopric, or as a functioning patriarch. High priests not currently serving in those callings would join their ward's elders quorum.
In a district, there is no high priests quorum. Men holding the office of high priest join the elders quorum of the branch they live in.
There are a number of positions in the LDS Church which may only be filled by a high priest. Among these are the stake president and his counselors, members of a stake high council, mission president, and member of a temple presidency. A bishop must be a high priest [unless he has a right-by-lineage to the calling (see D&C 107:69)]. Bishop's counselors are usually high priests, but there are some exceptions. (For example, the church does not require counselors in some young single adult wards to be ordained high priests.) Any high priest may become a member of the First Presidency, but in recent practice most members of the First Presidency have been apostles.
Since 1995, individuals ordained to the office of seventy are ordained first to the office of high priest.