The representation of biracial individuals in the United States is steadily growing, with individuals identifying as Native American and White being the largest biracial group. Despite their large representation, there are few theories that capture identity development among biracial individuals, and specifically those who are not biracial Black-White. This study draws from both the continuum of biracial identity (COBI) model and acculturation theories to investigate the biracial identity development of Native American-White individuals. Semi-structured interviews were conducted with 12 biracial Native American-White individuals (Mage = 24.6 years). Interview data were analyzed using a modified grounded theory approach and revealed that the process of biracial Native American-White identity development is both a stagewise (e.g., rejecting and then feeling affirmed in their identity) and multidimensional (e.g., physical appearance, sense of pride and belonging, and culture) process. The implication of study findings for researchers, mental health practitioners, and others invested in fostering positive identity development among biracial Native American-White biracial individuals is discussed.