ABSTRACT Objective: to relate the risk of dysphagia and aspects of eating behavior to the cognitive aspects of elderly people with dementia. Methods: 35 elderly patients with Alzheimer or vascular dementia were submitted to clinical and cognitive assessments as well as to a questionnaire for assessing appetite/eating disorder and the Dysphagia Risk Evaluation Protocol (DREP). Appropriate statistical tests were applied adopting a significance level lower than 0.05. Results: mild dementia occurred in 16 cases, moderate, in 14, and severe, in 5. Complaints of choking/coughing in the medical history, and signs of dysphagia in the DREP, occurred in 9 and 25 elderly patients, respectively, with no differences regarding the type and severity of dementia. Patients presented with dysphagia and alterations in the oral and pharyngeal phases of DREP, were older. Alterations in the pharyngeal phase were associated with poorer performance in the Mini-Mental State Examination (total score, attention/calculation, language). Changes in appetite/weight/eating habits were associated with signs of dysphagia, increasing severity of dementia and functional impairment. Conclusion: choking/coughing and signs of dysphagia were high. Changes in appetite/weight/eating habits were related to the severity of dementia and presence of dysphagia, and cognitive disorders and old age were associated with dysphagia.