Background Diabetes mellitus is a chronic metabolic disorder that affects millions of people worldwide. It has been established that diabetes has significant implications for oral health, including an increased risk of periodontal disease, xerostomia, and oral infections. This study aims to assess the knowledge, attitude, and awareness among diabetic and non-diabetic patients regarding the association between diabetes and oral health. Materials and Methods A cross-sectional study was conducted over a period of six months. A total of 200 participants were enrolled, comprising 100 diabetic patients and 100 non-diabetic patients. Data were collected using a structured questionnaire that included sections on demographic information, knowledge about the impact of diabetes on oral health, attitudes towards oral health care, and awareness of preventive measures. The responses were analyzed using descriptive statistics and chi-square tests to identify significant differences between the two groups. Results The study revealed that diabetic patients had a higher level of knowledge about the relationship between diabetes and oral health compared to non-diabetic patients (75% vs. 45%, p<0.05). Attitudes towards oral health care were more positive among diabetic patients, with 68% reporting regular dental check-ups compared to 40% of non-diabetic patients (p<0.05). Awareness of preventive measures, such as maintaining good oral hygiene and regular dental visits, was also significantly higher in the diabetic group (80% vs. 50%, p<0.05). Despite these differences, both groups showed a need for improved education on the oral health complications associated with diabetes. Conclusion The findings indicate that diabetic patients generally have better knowledge, attitudes, and awareness regarding the association between diabetes and oral health compared to non-diabetic patients. However, there remains a significant gap in awareness and education that needs to be addressed in both groups. Enhancing patient education and promoting regular dental check-ups could help mitigate the oral health complications associated with diabetes.