Aim - to determine the influence of different levels of lipid metabolism on the relative blood leukocytes telomeres length (RLTL), relative buccal epithelium cells telomeres length (RBTL) in hypertensive (H) individuals with type 2 diabetes mellitus (DM2T) and without DM2T. In 60 patients with H stage II (group 1), and 96 patients with H and DM2T (group 2) lipid metabolism indexes (total cholesterol (TC), triglycerides (TG), low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C)), anthropometric parameters were measured. Relative telomeres length (RTL) was determined by a real time quantitative PCR. The most significant shortening of RLTL and RBTL were found in group 2. In both groups, the achievement of target blood lipid levels was accompanied by multidirectional changes in RTL. Analysis of variance revealed a significant effect of TC (p=0.036) on the RBTL, LDL -C (p=0.036) on the RBTL in group 1, and significant influence of TG (p = 0.049) on RBTL, TC (p=0.019) and HDL-C (p=0.032) on RLTL in group 2. Achieving target levels of lipid metabolism did not demonstrate the expected significant effect on the elongation of the relative length of telomeres, both with isolated hypertension and with a combined course of hypertension and DM2T.