Background: Cancer experiences are mediated by host and disease factors and affected by social and cultural determinants of health. We sought to characterize perceived supportive care needs and domains of psychosocial functioning among a diverse group of women attending routine appointments for treatment or follow-up of breast and gynecologic cancers. Methods: From July 2018 until January 2019, all patients seen at the Stanford Women’s Cancers Program (serving women treated for breast and gynecologic cancers) were approached to participate. 220 cancer patients (78% breast and 22% gynecologic), mean age 54 (SD = 12) completed an online survey on their supportive care needs assessment (The Short-form Supportive Care Needs Survey Questionnaire) which contains physical, social, information, sexual and psychological scales, anxiety and depression (Patient Health Questionnaire-4) and mindsets about illness and the body mindset (Brief Illness Mindset Inventory). Only 14% of patients refused to take part in the survey. Results: T-test showed that Asian/Asian-American cancer patients (n = 57, 26%) reported fewer needs related to coping with physical symptoms, side effects of treatment and performing usual tasks and activities compared to Caucasian patients (n = 137, 62%), p = .038. Moreover, Asian/Asian-American cancer patients reported fewer depression symptoms (p = .049). Chi-square analyses showed that Asian/Asian-American patients reported less use of psychotherapy over their lifetimes (24.6% vs. 54.0%, p < .001), but significantly higher utilization of Chinese Medicine for cancer symptom management (24.6% vs. 5.8%; p < . 001) compared to the Caucasian patients. T-tests showed that Asian/Asian American patients reported significantly greater agreement with the mindsets that ‘cancer is a catastrophe’ (p = .006) and that their ‘body is an adversary’ (p = .047). Conclusions: In this population of breast and gynecologic patients and survivors we found differences in cancer mindsets, coping and use of mental health and complementary therapies between Asian and Asian-American and Caucasian women. Further analysis to understand the cultural differences are ongoing.