In gauging the success of Aboriginal language immersion education, the focus is often placed on measuring language acquisition and academic achievement. Although useful, these metrics only tell part of the story; to achieve real school success, it is also vital to develop high personal self-esteem that results in a positive concept of oneself as a learner, and high collective self-esteem, or attitude toward one's heritage, family, community, and school. This article describes the impact of Anishinaabemowin (Ojibwe) immersion education on the personal and collective self-esteem of kindergarteners, and discusses their concept of ethno-cultural identity, as compared to previously studied cohorts of Inuit learners in immersion and mainstream language schools. The results give important insights into not only the self-esteem of children in this immersion school as part of a measure of its overall success, but also the school experiences of Aboriginal children in different cultural, geographic, and educational contexts.