The purpose of this study was to measure school nurses' perceived self-efficacy in providing diabetes care and education to children and to identify factors that correlate with higher self-efficacy levels in the performance of these tasks. The results of this study revealed that the surveyed school nurses perceived a moderate level of self-efficacy in providing diabetes education. Significant findings in this study were positive relationships between self-efficacy and 3 variables: (a) participating in the care of children with diabetes, (b) having type 1 diabetes children in the school system, and (c) supervising children with blood glucose meter testing. There was a significant relationship between higher self-efficacy scores and having a diabetes curriculum. However, only nine school nurses reported having a diabetes curriculum. School nurses can benefit by understanding what factors increase self-efficacy related to diabetes education designed to enhance school-age children's knowledge of diabetes and its management. (Contains 6 tables and 1 figure.)