This study aimed to assess the association between the consumption of dairy products and T2D events in Korean middle-aged adults. Data was from the Health Examinees Study among 53 288 subjects. Dairy consumption was assessed using the self-administered Food Frequency Questionnaire. Hazard ratios (HRs) and 95% confidence interval (CIs) between dairy consumption and T2D were calculated using Cox proportional risk regression models after adjusting for potential confounders. Among men, those with higher consumption of dairy products had significantly lower risk of T2D than those who consumed essentially no dairy products (HR=0.73; 95% CI=0.58, 0.91). Particularly, the consumptions of yogurt (HR=0.75; 95% CI=0.60, 0.93; p-trend=0.0351) and cheese (HR=0.66; 95% CI=0.49, 0.89; p-trend=0.0055) were negatively associated with the incidence of T2D in men. The weekly consumption of dairy products, particularly yogurt, reduces the prevalence of T2D in Korean adults. This work was supported by the National Research Foundation of Korean (NRF) grant funded by the Ministry of Education and Science Technology (MEST) [grant number 2020R1C1C1014286].