Today’s interest in personal development is growing. The influence of emotional intelligence on leadership is not a common topic, which is the reason for addressing this topic. This topic is categorised into the field of leadership and personal development. This paper presents both the theoretical and the practical part through which one of the most beloved leaders of our time was analysed. The theoretical part is based on the best possible definition of emotional intelligence and leadership, proving that leadership cannot be done effectively without emotional intelligence. The case study was based on Barack Obama’s analysis in terms of emotional intelligence, as a methodology using articles from the American press with screenshots, interviews with Barack Obama and speeches given throughout his career. With their help, it was shown that Barack Obama has a high level of emotional intelligence by identifying the characteristics that demonstrate this.