Background: The faculty of nursing schools plays an important role in the successful execution of nursing education. Therefore, faculty behavior strongly affects the professional development of nurses. However, few studies have examined professional nursing behaviors from the perspective of nursing faculty. Purpose: Members of nursing faculty in Japan were surveyed regarding their perspectives on behaviors related to professionalism. Methods: The model, Miller’s Wheel of Professionalism in Nursing, was used as the theoretical framework. The Behavioral Inventory for Professionalism in Nursing (BIPN) was completed by 74 full-time nursing faculty who were currently working at 10 institutes of nursing education in Japan. Results: The mean BIPN score for the participants was 11.56 (SD = 6.08) of a possible total of 27. The highest and lowest BIPN category scores were for ‘‘research development, use, and evaluation’’ and ‘‘community service,’’ respectively. Professionalism was found to relate significantly to higher educational preparation (F = 32.17, p G .0001). The TukeyYKramer multiple comparison test found a significant association between having a graduate degree and higher scores for professionalism (p G .0001). The Spearman correlation coefficient was significant and positive for the relationship between professionalism and both educational preparation (r = .85, p G .0001) and number of years as a nursing educator (r = .31, p = .0077). Conclusions: The results support the idea that a higher level of educational preparation and more years of experience as a member of a nursing faculty are associated with higher levels of nursing professionalism. The professional behavior scores suggest that ‘‘community service’’ is an issue that requires further improvement among Japanese nursing faculty. Awareness of extrinsic factors such as education is important to maximize nursing professionalism. The findings of this study may help nursing faculty continue their self-development.