Breast cancer disproportionately impacts Native Hawaiian and Pacific Islander communities in Hawai'i, as exemplified by high breast cancer prevalence and mortality rates. Breast cancer disparities are linked to socio-cultural determinants of health, signifying the importance of culturally-based interventions. This paper systematically reviewed breast cancer studies conducted in Hawai'i. The literature search yielded 813 published studies, with a final total of 13 peer-reviewed studies that met this paper's inclusion criteria. All but 1 study incorporated cultural components. By evaluating key intervention components and assessing the quality of each study, the research team aimed to analyze the importance of cultural values in health interventions. Family and spirituality in coping with a cancer diagnosis were key themes in patients' lived experiences. Other culturally-based components in these studies included community-engaged research and cultural training for health professionals. The collective findings suggest that breast cancer health interventions that incorporate cultural strengths, values, and worldviews may play a central role in reducing the overall breast cancer burden among these communities. The present review advocates for future research to take a more culturally-based strategy in addressing breast cancer health disparities among Native Hawaiian and Pacific Islanders in Hawai'i.