Asian American Pacific Islander (AAPI) groups have low rates of breast and cervical cancer screening. This study examined knowledge, attitudes, and beliefs (KABs) regarding breast and cervical cancer on AAPI women. A cross-sectional survey of 1,808 AAPI women was included. Descriptive statistics and chi-square tests were provided and 55.3%, 68.6%, and 71.9% had received mammograms, clinical breast exam, and Pap smears, respectively. KABs on breast and cervical cancer varied between the four ethnic groups. Understanding the KABs toward cancer screening among AAPI women holds promise for identifying barriers to early detection and could aid in the creation of interventions.