The study of leadership in sport is as venerable as the field of sport psychology itself. Over recent decades, our understanding has significantly deepened regarding two primary questions that have long intrigued researchers in this domain. The first is what we call the ‘Who’ of leadership. This pertains to identifying the individuals within sports teams who assume leadership roles. Is it confined to the coach and the team captain, or can other team members also emerge as leaders? The concept of shared leadership, initially adopted in organisational contexts, has been instrumental in addressing these queries. It reveals that leadership, when distributed among formal leaders (e.g., coaches, team captains) and informal leaders (i.e., those who rise to the occasion through their interactions within the team), can be particularly effective. Research, such as that by Mertens et al. (2020), underscores that this shared leadership approach correlates positively with team effectiveness. The second pivotal question is the ‘How’ of leadership. Here, researchers have delved into the specific qualities that leaders should embody to propel their teams towards peak performance, optimal functioning, and even enhanced mental health. The social identity approach to leadership has emerged as a key framework for understanding the qualities that make leaders effective (Haslam et al., 2020). However, two significant limitations shadow our current understanding of the study of shared leadership (the ‘Who’) and identity leadership (the ‘How’) in sport. The first of these is that most research has been conducted in WEIRD (Westernised, Educated, Industrialised, Rich, and Democratic) countries, predominantly featuring homogenous cultures. This raises questions about the generalisability of these findings to non-WEIRD contexts and cultures. Second, there’s a dearth of focus on youth sports, with adult sports often taking centre stage. Bridging these gaps, my PhD research embarked on a journey through a series of eight studies to forge a cross-cultural understanding of leadership in sport. These studies, poised to develop and perhaps even challenge existing paradigms, will be presented in my upcoming talk. My hope is that together we can move towards becoming a truly global psychology of sport.