This paper explores the potential of hybrid governance approaches, particularly Mosaic Governance, to advance environmental justice in cities through nature-based solutions (NBS). Mosaic Governance is a strategic approach that fosters long-term collaborations between local governments, communities, and grassroots initiatives. The study examines six pathways through which Mosaic Governance can contribute to environmental justice: greening the neighborhood, diversifying values and practices, empowering people, bridging across communities, linking to institutions, and scaling inclusive values and approaches. Case studies from Copenhagen, Utrecht, and Södertälje, Sweden, illustrate how these pathways can be implemented and their impact on environmental justice. The results show that Mosaic Governance particularly contributes to recognition justice by diversifying NBS practices to align with community values and aspirations. However, the effectiveness of these pathways depends on long-term engagement, adaptivity, and reflexivity among stakeholders. The study also highlights the importance of a broader framing of justice, considering social, cultural, economic, and political dimensions, to avoid disempowering or exploitative transitions.This paper explores the potential of hybrid governance approaches, particularly Mosaic Governance, to advance environmental justice in cities through nature-based solutions (NBS). Mosaic Governance is a strategic approach that fosters long-term collaborations between local governments, communities, and grassroots initiatives. The study examines six pathways through which Mosaic Governance can contribute to environmental justice: greening the neighborhood, diversifying values and practices, empowering people, bridging across communities, linking to institutions, and scaling inclusive values and approaches. Case studies from Copenhagen, Utrecht, and Södertälje, Sweden, illustrate how these pathways can be implemented and their impact on environmental justice. The results show that Mosaic Governance particularly contributes to recognition justice by diversifying NBS practices to align with community values and aspirations. However, the effectiveness of these pathways depends on long-term engagement, adaptivity, and reflexivity among stakeholders. The study also highlights the importance of a broader framing of justice, considering social, cultural, economic, and political dimensions, to avoid disempowering or exploitative transitions.