The hilly regions of Uttarakhand face persistent agricultural and livelihood challenges due to climate variability, land degradation, wild animals, shrinking farm productivity, and large-scale out-migration. Once central to the region’s dietary and cultural systems, millet cultivation has steadily declined with the expansion of rice and wheat under input-intensive models and government procurement schemes. This has not only reduced agro-biodiversity but also weakened food and nutritional security in remote villages. Millets, however, offer significant potential for revitalisation as they are climate-resilient, require minimal inputs, and are rich in micronutrients such as iron, calcium, and dietary fiber. Their suitability for rainfed, marginal hill terrains position them as key crops for ensuring sustainable livelihood security. This study examines the role of millet revitalisation in strengthening sustainable livelihoods in Uttarakhand’s hill agriculture. Adopting a qualitative research methodology, data was collected through field surveys, in-depth interviews, focus group discussions, and participatory rural appraisal across selected villages. The findings reveal that millet revival can contribute to multiple dimensions: enhancing nutritional security, empowering women through processing and marketing, reducing dependence on external food sources, and creating new livelihood opportunities through value addition and niche market development. Despite these advantages, challenges such as inadequate policy support, limited extension services, low consumer awareness, and poor market access continue to constrain millet cultivation.