This study examines gender differences in leadership behaviors and whether leadership training would have different effects on leadership behaviors by gender. Using data from several hundred managers of welfare and financial agencies in Denmark, we first investigate whether leadership behaviors differ between female and male leaders. After that, we conducted a year-long field experiment with managers to examine how female and male leaders respond to leadership training interventions. In general, female managers improve more from leadership training even though leadership scores for female leaders were higher before training.