Indigenous identity is a core academic concept and research field that investigates the complex, multifaceted ways Indigenous peoples define themselves individually and collectively. This concept explores identity formation as grounded in relationships to land, culture, language, history, and community, often shaped by experiences of colonization, resistance, and the pursuit of self-determination. Its significance lies in its centrality to understanding Indigenous experiences, informing decolonial scholarship, and supporting the assertion of Indigenous rights and sovereignty.