Objectives: Vaccination of adults has an important role in the management of vaccine preventable diseases. Especially, the aging of the population in the world and the increase in deaths due to infections in the elderly have led to the in- crease in the awareness about adult vaccination and the increase in the need for effective vaccination. It was aimed to evaluate the awareness of the patients about adult vaccination in this study. Methods: We evaluated the awareness of the patients who applied to the internal medicine and family medicine out- patient clinics of our hospital for 1 month with a questionnaire that we created. The questionnaire was composed of 16 questions. The study was carried out with 168 people over 18 years of age who applied to general internal medicine and family medicine outpatient clinics in Eskişehir Osmangazi University Medical Faculty Hospital and accepted to be informed and to participate in our survey. Results: About 35.1% (n=59) of the respondents were recommended to be vaccinated during adulthood, while 64.9% (n=109) were not vaccinated. 78.3% (n=36) of the 46 respondents to our question “Would you get vaccinated if it was recommended?” marked yes, and 21.7% (n=10) said no (p<0.001) In our study, it was seen that the majority of unvac- cinated patients did not receive vaccination recommendations. Conclusion: Not only primary care physicians, but all physicians dealing with adult health should frequently remind their patients about adult vaccination, which is an important step of preventive health services, increase the patient’s knowledge, and awareness based on scientific evidence, and address their concerns.