Lethbridge Collegiate Institute (LCI) is the largest school operated by Lethbridge School District No. 51. The school is one of two public secondary schools in Lethbridge, Alberta, Canada, that serve grades nine, ten, eleven, and twelve. Entry into LCI is loosely based on resident location in either south or west Lethbridge. LCI was the first school in Lethbridge designated only for secondary students. It opened at its current location in 1950, but was founded in a smaller, adjacent building in 1928. Since its 1950 opening, several additions and layout changes have been made at the school. LCI has increased student capacity to 1,600, a number the enrollment is expected to reach in 2009.
A relatively extensive academic program is offered, including automotives, construction and communication technology, fashion studies, and four language studies programs. An Advanced Placement Program is offered in several key subject areas, including mathematics, language arts, and the sciences. Respected instrumental music, choir, and dance programs have helped LCI become well known in Southern Alberta for offering balanced opportunities to students in both academics and extracurricular activities.