Patients with advanced cancer are commonly prescribed opioids, yet patient attitudes about opioid risks (eg, opioid use disorder, or OUD) are understudied. Our objective was to use in-depth qualitative interviews to understand perceptions of opioid prescribing and OUD in patients with advanced, solid-tumor cancers and their support people. We conducted a qualitative study using a rigorous inductive, qualitative descriptive approach to examine attitudes about OUD in patients with advanced cancer (n = 20) and support providers (n = 11). Patients with cancer hold 2 seemingly distinct views: prescription opioids are addictive, yet OUD cannot happen to me or my loved one. Participants described general concerns about the addictive nature of prescription opioids ("My biggest concern… would just be the risk of getting addicted to the medication or even like, overdosing it"), while separating cancer pain management from OUD when considering prescription opioid risks and benefits ("They need to make sure they get the right ones, when they're taking it away from you."). Finally, participants identified personal characteristics and behaviors that they felt were protective against developing OUD (commonly control, willpower, and responsibility). This rigorous qualitative study demonstrates that patients with advanced cancer and their support people simultaneously hold concerns about the addictive nature of prescription opioids, while distancing from perceptions of OUD risks when using opioids for cancer pain management. Given high rates of opioid exposure during advanced cancer treatment, it is important to explore opportunities to promote a balanced understanding of prescription opioid use and OUD risks in this population. PERSPECTIVE: Though prescription opioids carry risk of OUD, there is little data to help guide patients with advanced cancer. Findings suggest that there is a need to develop new, innovative strategies to promote effective pain management and minimize opioid risks in this complex population.