Young Men's Mutual Improvement Association

The Young Men (often referred to as Young Men's) is a youth organization and an official auxiliary of The Church of Jesus Christ of Latter-day Saints (LDS Church). The purpose of the organization is to assist the Aaronic priesthood organization in promoting the growth and development of male Latter-day Saints ages 12 to 18.

The first official youth association of the church—the Young Gentlemen’s and Young Ladies’ Relief Society—was formally organized by Nauvoo, Illinois, youth on the advice of church founder Joseph Smith in March 1843. The group had held several informal meetings since late January of that year under the supervision of apostle Heber C. Kimball. In 1854, apostle Lorenzo Snow organized the Polysophical Society and encouraged young Latter-day Saints to join. In 1875, LDS Church president Brigham Young organized the Young Men's Mutual Improvement Association (YMMIA) and intended that it act as a male equivalent of the Young Ladies' Cooperative Retrenchment Association, which was renamed the Young Ladies' National Mutual Improvement Association in 1877. The purpose was to "help young men develop their gifts, to stand up and speak, and to bear testimony".

A central committee of the YMMIA, led by Junius F. Wells, was formed in 1876 to oversee the organization, conduct missionary work, and issue general instructions. A YMMIA general superintendency (later renamed "general presidency") was formed by LDS Church president John Taylor in 1880.