Advances in Social Sciences and Management March 2024, Vol-2, No-3, pp. 26-47 Are Co-Curricular Activities Useful for Diversity Management? Evidence From Secondary Schools in Addis Ababa, Ethiopia Easaw Alemayehu Assefa 1. Addis Ababa University, Ethiopia Abstract: Promoting diversity management in educational settings is crucial for creating inclusive environments, and co-curricular activities have emerged as a valuable tool for achieving this goal. This study aimed to investigate the role of co-curricular activities in diversity management specifically in Addis Ababa's secondary schools. The study addressed two primary research questions. To gain a comprehensive understanding of the topic, a mixed-methods approach was employed. This involved integrating quantitative survey data with qualitative insights from interviews. The survey was administered to the research sample, while interviews were conducted to gather in- depth information. This combination of methods allowed for a more robust analysis. The research sample consisted of 375 participants, including 187 males and 188 females. The findings of the study revealed a significant positive impact of co- curricular activities on diversity management. These activities provided opportunities for students to engage with peers from diverse backgrounds, fostering mutual understanding and respect. However, the study also identified several barriers and challenges. This study is unique in its investigation of how co-curricular activities contribute to diversity management in Addis Ababa's secondary schools, offering valuable insights for fostering inclusive environments. Based on the study's findings, it is recommended to address the identified barriers and challenges to enhance the effectiveness of co-curricular activities in promoting diversity management. Strategies and interventions should be developed to increase awareness of diversity management among stakeholders. Keywords: Co-curricular, Contribution, Challenges, Diversity Management. INTRODUCTION Diversity management is a critical aspect of creating inclusive educational environments that value and celebrate the differences among students (Ordu, 2015; Yamada, 2011). It involves implementing strategies and practices that promote positive interactions, intercultural understanding, and the breakdown of stereotypes within school communities (Phantasoot, & Wangthanomsak, 2021). Co-curricular activities, which encompass sports, clubs, cultural events, and community service initiatives, have emerged as a potential strategy for diversity management (Saifi, 2023; Mancha, & Ahmad, 2016). These activities provide students with opportunities to engage in extracurricular pursuits beyond the traditional academic curriculum (Kelbiso, 2019; Ab Ghani et al., 2020). Ethiopia is a country known for its rich cultural and linguistic diversity, with numerous ethnic groups and languages represented among its population (Mengesha, 2017; Belay, et al., 2005). Ethiopian secondary schools encounter the challenge of effectively managing this diversity to create inclusive and harmonious learning environments (Adugna, 2017; Heugh, 2014). Co-