Elementary schools are an optimal setting to provide obesity prevention interventions, yet little is known about the obesity prevention practices of elementary school nurses. The purpose of this study was to gain insight into current obesity-related school nursing practice in elementary schools in Minnesota, opinions regarding school nurse-led obesity prevention programs, and school nurses' interest in implementing obesity prevention programs. Semistructured interviews were conducted with key informants from 21 Minnesota school districts (urban ¼ 7; suburban ¼ 8; and rural ¼ 6), who were licensed school nurses (LSNs). Findings indicated that LSNs provided some primary and secondary obesity prevention services. Key informants felt school nurses, administrators, and parents would be supportive of school-based, LSN-led obesity prevention efforts. Interest in increasing efforts was limited by time constraints, staffing, and resources. School nurses are well positioned to provide prevention services that will contribute to reducing childhood obesity.