Objectives: This study aimed to explore the prevalence of utilization of complementary medicines by Diabetic patients among population in Saudi Arabia. Methods: A cross-sectional study directed to Saudi Arabia resident populations, through an online questionnaire format in Arabic language that was uploaded on Google forms website, and will be distributed on social media applications through collaboration with many friends for over 4 weeks. Data were revised and coded and tabulated using the frequency and percentage using software SPSS 24. Results: 358 diabetic patients of both genders aged ≥ 18 y/o cleared the survey. Saudi citizens were nearly equal to non-Saudi citizens. Female represent 67.04% of the sample. 57.54% of participants have no special lifestyle except smocking 10.1% and exercises 24.58%. 30.2% of participants suffering for at least 5 years and 30.73% visiting the physician for consultation once or twice yearly. While 39.66% of participants did know their glycated Hemoglobin level. About half of the participants using the oral drugs while 37.99% were using injectable drugs (Insulin). Source of consultation for using complementary medicine by specialist doctor was 27.9% while 26.26% were advised by friends and relatives. Obesity with diabetes represent 40.8%, then hypertension represent 36.87%, the thirdly Hyperlipidemia represent 20.11%. The most used T&CM therapies were nutritional supplements 31.8%, multivitamin and minerals 34.64%, Oral herbals 12.29%, acupuncture 3.35%, cupping therapy 10.06%, cautery 2.23%, spiritual healing (ruqia) 11.73%, massage 6.15%. while, 28.49% participant do not use complementary medicine and 6.15% use other types of complementary medicine. Ginger, black seeds, fenugreek and turmeric were used with a frequency of 37.43%, 36.9%, 26.26%and 21.23% respectively in the form of powder, while 31.84% used them after boiling or swallowed with water. 51.96% using vitamin D, 48.04% using vitamin C., 30.17% calcium, 28.49% and zinc 28.49%. Only 6.1% of the respondents had complained of side effects resulting of using complementary therapies. Conclusion: Diabetes is a chronic metabolic disease frequently complementary medicine is used by patients beside the conventional treatment. Physicians have to be aware of this fact and should encourage their patients to talk regarding the use of complementary medicine as it may affect the outcome and fate of their condition.