Infrastructure development serves as a fundamental driver of economic growth and social progress. However, the extent to which infrastructure projects achieve sustainability largely depends on their ability to incorporate social inclusion and community engagement. This chapter explores the intersection of infrastructure finance and participatory governance, emphasizing the need for inclusive decision-making processes that integrate marginalized communities. By drawing on theoretical perspectives and empirical case studies, it examines how stakeholder involvement enhances project legitimacy, mitigates socio-environmental risks, and fosters equitable access to infrastructure benefits. The chapter critically assesses financial models, regulatory frameworks, and institutional mechanisms that support inclusive infrastructure governance. Key challenges such as policy fragmentation, financial constraints, and socio-political resistance are analyzed to identify barriers to meaningful engagement. Additionally, emerging approaches, including co-financing models, community-led infrastructure development, and digital platforms for participatory governance, are discussed as potential solutions. The chapter also highlights the role of financial institutions, policymakers, and development organizations in fostering a governance paradigm that integrates economic efficiency with social equity. By synthesizing global best practices, this study provides actionable policy recommendations aimed at strengthening social inclusion in infrastructure planning and implementation. The findings underscore the need for a governance framework that balances financial sustainability with community-driven development, ensuring long-term resilience and equitable infrastructure outcomes. This chapter contributes to the broader discourse on sustainable governance by advocating for participatory models that position social inclusion as a central pillar of infrastructure finance and development.