Objective: To assess the relationship between vitamin D deficiency (VD) and risk factors for metabolic syndrome (MS) in postmenopausal women with arterial hypertension (AH). Materials and methods of research. The study included 46 women aged 45–65 years with amenorrhea > 12 months, having grade 1 hypertension and metabolic syndrome. Anthropometric, laboratory and instrumental data were studied. Biochemical parameters included total cholesterol (OH), HDL, triglycerides, glucose, insulin, and 25-hydroxyvitamin-D [25 (OH)D]. Daily blood pressure monitoring was performed according to the standard protocol. Levels of 25(OH)D in blood serum was classified as-adequate (≥ 30 ng/ml) and insufficient (20–29 ng/ml). Results: Level 25 (OH)D in blood serum was sufficient in 21 women (45.6 %), insufficient – in 25 (54.4 %). Women with insufficient levels of 25 (OH)D had higher levels of cholesterol, triglycerides, insulin, and HOMA-IR. Metabolic syndrome was detected in 64 % (16/25) of women with hypovitaminosis D and in 43 % (9/21) of women with sufficient VD (p < 0.01). The correlation analysis established the relationship of the low level of 25 (OH)D (< 30 ng / ml) with MS (r = 0.68), high triglycerides (r = 0.74) and low HDL (r = 0.71). The average concentration of 25 (OH) D decreased with an increase in the number of MS components (p = 0.016). Conclusions: VD deficiency in postmenopausal women was associated with a higher prevalence of MS. Women with HDL deficiency had a higher risk of MS, hypertriglyceridemia, and low HDL levels compared to those with adequate levels.