The purpose of this study was to investigate the relationship between school principals self-reported spirituality and their transformational leadership behaviors. The relationship between spirituality and transactional leadership behaviors was also explored. The study used Bass and Avolio s (1984) Full Range Leadership Model as the theoretical framework conceptualizing transformational leadership. Data were collected using online surveys. Overall, six principals and sixty-nine teachers participated in the study. Based on the findings from this study, the researcher proposed a modification of Bass and Avolio s (1985) Full Range Leadership Model. An additional dimension, spirituality, was added to the continuum of leadership styles. The findings from this study imply that principals self-reported levels of spirituality was related to their being perceived as displaying transformational leadership behaviors. Principals who identified themselves as spiritual , were more likely to becharacterized by the transformational leadership style of inspirational motivation.