This paper investigates the pivotal role of cooperatives in facilitating regional integration, with a focus on the Western Balkans region. Utilizing insights drawn from the European integration process and the unique dynamics of the Western Balkans, this study delves into the multifaceted ways in which cooperatives contribute to various facets of regional integration, encompassing rural development, agriculture, employment, social inclusion, and energy. Through an analysis of projects and initiatives involving cooperatives in the region, it becomes apparent that these entities serve as inconspicuous yet crucial local actors, driving socio-economic advancement and fostering cross-border collaboration. Despite encountering challenges such as legal frameworks and historical contexts, cooperatives significantly influence the promotion of bottom-up approaches to integration, thereby amplifying the participation of local stakeholders in the process. By leveraging fundamental principles inherent to cooperativism, including solidarity and democratic governance, these organizations facilitate dialogue, trust-building, and sustainable development, thereby furthering the overarching objectives of regional integration. This paper underscores the imperative for greater acknowledgment of cooperatives as possible stakeholders in regional integration processes and advocates for policies aimed at bolstering their engagement and empowerment.