The purpose of this article is to examine how individuals' personal beliefs about the antecedents of leadership ability influence their leadership behavior and ultimate effectiveness. The relevant literature is reviewed to highlight current thinking in relation to the debate over whether leadership is innate or learned. A leadership mindset that differentiates between a fixed or a growth mindset (Dweck, 2006) is presented. A person with a "fixed mindset" would view leadership as an innate quality, or believe that people are born leaders. A person with a "growth mindset" would believe that leadership abilities can be learned and acquired through effort and experience. The leadership mindset is a critical component related to effectiveness and success as a leader. Coaching education and leadership training programs should consider focusing on helping coaches and leaders develop a growth mindset about their leadership abilities, and suggestions are offered for ways to incorporate the study of and emphasis on a growth leadership mindset in sport. (Contains 1 note.)