Contamination of foods with heavy metals poses significant threats to human health. In this study, human health risks of heavy metals contaminated vegetables (cabbage, onion and green pepper) from irrigation farmlands in Toke Kutaye, Ethiopia were evaluated. Wet acid digestion of vegetables, supporting soil and irrigation water samples were employed prior to FAAS determination of heavy metals (Fe, Zn, Cu, Mn, Co, Cr, Ni, Cd and Pb). The measured average values of the studied heavy metals ranged from 2.52 ± 0.06 mg/L, 2.25 ± 0.19131.31 ± 0.13 mg/kg, and 18.21 ± 0.17 mg/kg for water, soil and vegetable samples, respectively. The average concentration of the studied heavy metals in the vegetable samples were arranged in the order of Zn>Cu>Fe>Mn>Co>Ni>Pb>Cr>Cd. The heavy metals accumulation in the vegetables followed the order of cabbage > onion > green pepper. The mean values of Pb in the vegetables exceeded the WHO/FAO guideline value. The possible sources of the heavy metals were agrochemicals, domestic sewage wastes, manures and geogenic processes. The hazard quotient (HQ) and hazard index (HI) based human health risk assessment results indicated that the individual metals and their mixture could pose insignificant non-carcinogenic risk (HQ and HI