Objectives: There is an increasing awareness about the association of the restless leg syndrome (RLS) with type 2 diabetes, the present study assessed RLS and its associations among patients with diabetes. Results: This case-control study conducted among 160 subjects (eighty-two patients with diabetes and 78 controls) attending a diabetic clinic in Omdurman, Sudan during the period from June 2018 to September 2019. A structured questionnaire based on restless syndrome, demographic data, and diabetes complications was used. The neck circumference was measured to assess adiposity, and a blood sample was taken for the glycated hemoglobin estimation.There were 82 patients with type 2 diabetes and 78 controls matched for age and sex, the restless syndrome was higher among patients with diabetes (31.7% vs. 10.3%%) with significant statistical difference, P-<0.05, A direct positive relationship was found between restless leg syndrome and diabetic neuropathy (Wald =5.48, P-value=0.019, 95% CI 1.70-410.76, no relationship was found between RLS, diabetic retinopathy, HbA1 c , sex, and neck circumference, P-values (0.757, 0.804, 0.317, and 0.361 respectively). RLS was prevalent among patients with type 2 diabetes and related to diabetic neuropathy, no relationship was found between restless syndrome, age, sex, neck circumference, HbA1 c , and retinopathy.