Background. Cancer is growing around the world, especially among older adults. However, there is little evidence about the consequences of cancer and its treatments on occupational engagement in older adults. Before conceiving a cohort study to assess the outcomes of an occupational-therapy follow-up with older adults with cancer, we wanted to test our hypothesis that cancer and its treatments might affect all three occupational domains, and not only self-care. Objectives. i. Identify occupational problems in older adults with cancer in a pilot sample; and ii. Analyze how much the individuals valued those restricted occupations. Secondary objectives were to i. Assess the feasibility of recruiting, and ii. Precise the inclusion and exclusion criteria for participants. Methods. We conducted a retrospective pilot study, in one single geriatric rehabilitation ward. We studied the Canadian Occupational Performance Measure (COPM) results of older adults with cancer, and analyzed occupational problems and self-perceived occupational importance, performance and satisfaction. Results. Among 30 patients referred to occupational therapy, seven were included, identifying 21 occupational problems. Four respondents were women; the median age was 84 [71;89]. Nine of the 21 occupational problems were among self-care, six among productivity and six were leisure occupations. All occupational domains were valued. Main limits were the small sample size and only in-hospital follow-up. Conclusion. The three domains of occupations may be altered and not-only self-care in older patients with cancer. Productivity and leisure restrictions have to be assessed more in-depth to understand determinants and ways to improve.