Because of the longitudinal nature of careers, career commitment would seem to be important for career development and progression. Yet it has received little attention in the career literature. This article addresses the role of career commitment in career development and examines some personal and situational correlates of career commitment. The sample includes both managerial (n = 341) and professional (n = 85) employees. Among the variables examined, one of the strongest correlates of career commitment was having a mentor. Practical implications are discussed, including those for mentoring and organizational career development programs.