Mentoring has long been viewed as a powerful means of enhancing the professional success and personal wellbeing of early-career faculty; however, little is known about its benefits for senior faculty. Using data from a peer mentoring community of six senior faculty women in leadership roles at a research university, this study explores the impact of mutual mentoring on leadership development. Members shared experiences and expertise, provided support and feedback regarding current work issues, and deepened social connections and relationships with other advanced-career women. The findings underscore the importance of mentoring for senior women in leadership positions and of a mutual mentoring model as an approach that promises significant benefits. [Note: The page range (7-16) shown on the website is incorrect. The correct page range is 7-15.]