Purpose: This descriptive study was conducted to identify the level of knowledge of stroke symptoms and risk factors among older adults. Methods: A total of 200 older adults over 65 years of age were conveniently recruited from out patient departments of two hospitals and a health care center from October to November 2008. The level of knowledge was assessed using both open-ended questions and a structured questionnaire based on semi-structured interviews. Data were analyzed by t-tests and ANOVA using the SPSS program. Results: 52.5% of the sample had hypertension and 30% had diabetes. The mean knowledge scores for symptoms and risk factors were $8.4{pm}3.1$ (out of 15) and $9.5{pm}3.9$ (out of 16), respectively. The older adults who had lower education, lower family income, and who lived in rural areas were more likely to have less knowledge of stroke symptom and risk factors (p < .05). There was no significant knowledge difference between the older adults who had at least one risk factor and those who had no risk factor for stroke. Conclusions: Educational intervention should be focused on informing older adults who are at risk for stroke about the early symptoms and management of risk factors, especially those who have low education and low social status.