In the Boy Scouts of America, a Scout leader refers to the trained leaders of a Scout unit. Adult leaders are generally referred to as "Scouters," and the youth leaders are referred to by their position within a unit. In all Scouting units above the Cub Scout pack and units serving adolescent Scouts, leadership of the unit comprises both adult leaders (Scouters) and youth leaders (Scouts). This is a key part of the Aims and Methods of Scouting. In order to learn leadership, the youth must actually serve in leadership roles.

The Boy Scouts of America is one of the largest scouting organizations and one of the largest youth organizations in the United States, with over 1 million youth, including 176,000 female participants. The BSA was founded in 1910; about 130 million Americans have participated in its programs. Served by 477,000 adult volunteers. BSA became a founding member organization of the World Organization of the Scout Movement in 1922.