Objective: To determine the prevalence of comorbidities associated with type 2 diabetes mellitus among the Saudi adult population. Methods: A cross-sectional study design will be employed to investigate the prevalence of comorbidities associated with Type 2 Diabetes Mellitus (T2DM) within the Kingdom of Saudi Arabia (KSA) population. This design allows for the collection of data at a single point in time, providing insights into the existing relationship between T2DM and comorbidities.Results: The study included 601 participants. The most frequent body mass index BMI value among study participants was overweight 25-29.9 kg/m² (n= 196, 33%), followed by Normal 18.5-24.9 kg/m² (n= 177, 29%). The frequent gender among study participants was male years (n= 356, 59%) and female (n= 245, 41%). The most frequent age among study participants was 40-50 years (n= 145, 24%), followed by 18-28 years (n= 140, 23%). The most frequent marital status among study participants was married (n= 360, 60%), followed by single (n= 160, 27%). The perceived physical activity per week among study participants, most of whom did not do any activity (n=231,38%) followed one-time activity (n=98,16%). Conclusion: The results showed that most of the study participants were overweight according to their BMI. The majority of patients had normal blood pressure. Most of the participants suffer from diabetes. In addition, most of the participants do not do any activity, and the majority of participants are non-smokers.