This essay delves into the core components of a robust organisational culture, emphasizing the critical role of leadership in fostering inclusivity and multiculturalism. It begins by outlining the essential elements that contribute to a strong organisational culture, drawing upon theoretical frameworks like Edgar Schein's model to explain the dynamics of cultural development and the impact of values, artifacts, and underlying assumptions. The essay then examines how leadership can ensure an inclusive and multicultural environment through various strategies, such as promoting open communication, providing diversity training, and ensuring fair treatment and opportunities for all employees. Furthermore, the essay incorporates personal observations of multiculturalism within McDonald's, illustrating how management and leadership practices influence the cultural landscape, and highlighting the importance of treating each employee as an individual, valuing diverse perspectives, and promoting cultural knowledge to enhance employee engagement. The essay concludes by underscoring the ongoing nature of building an inclusive workplace and the value of fostering diverse perspectives in achieving business success.