Indigenous communities worldwide have confronted the persistent threat of cultural assimilation and linguistic erasure as a result of colonial dominance. In response, robust language revitalization movements have emerged as acts of resistance, seeking to reclaim indigenous languages and safeguard cultural heritage. Led by indigenous intellectuals, educators, and activists, these movements encompass diverse initiatives, including the establishment of community-based language schools, advocacy for language rights, and cultural resurgence endeavors. By contesting colonial language ideologies and fostering intergenerational connections, indigenous communities reaffirm their linguistic autonomy and cultural sovereignty. This paper critically examines the significance of indigenous-led language revitalization movements in preserving linguistic diversity, challenging entrenched colonial legacies, and affirming indigenous rights to linguistic and cultural self-determination. Through an exploration of these movements, this study contributes to a deeper understanding of the resilience and agency of indigenous peoples in the face of historical oppression and ongoing struggles for cultural survival and revitalization.