In the global mountain ecosystems, the Himalayan region has a unique place. These geo-dynamically vibrant mountains are home to a diverse range of flora, fauna, human populations, and cultures. Although the region is rich in natural resources, most of its population remains marginalised. The Himalayan environment and people have been closely intertwined since antiquity. However, the conditions in this delicate resource region are currently getting worse due to human activities. The attempts to modify the Himalayan environment for developmental purposes have been causing environmental imbalance significantly impacting the security of the Himalayan ecosystem and its inhabitants. Environmental justice demands addressing environmental issues in the Himalayan region from the viewpoint of impacted and indigenous peoples communities. Acknowledging the aforementioned, this chapter endeavours to explore, examine and comprehend the notion of environmental justice concerning the rights and interests of the indigenous population inhabiting the Himalayan region.