Key Club International is the oldest and largest service program for high school students. It is a student-led organization whose goal is to teach leadership through serving others. Key Club International is a part of the Kiwanis International group. Each local Key Club is, in turn, sponsored by a local Kiwanis club.

The name “Kiwanis” means “we trade” or “we share our talents” and was coined from an American Indian expression, Nunc Kee-wanis. This was originally the motto of Kiwanis, translated as "We build." The current motto is "serving the children of the world".