Recipients who have intermediated or slow graft Function (SGF) don’t have a rapidly falling serum Creatinine level post transplant but do have sufficient kidney function to avoid the need for dialysis. Hypercalcemia and hyperparathyroidism are associated with impaired renal function. Little is known on the effects of serum calcium level on Delayed graft Function (DGF). The aim of our current study was to determine correlation between calcium level and SGF. Of the 33 living unrelated recipients 15 had SGF and 18 had Immediate graft Function (IGF). ATN occurred in 6 (18.2%) of patients studied. SGF Correlated Significantly with the Presence of ATN. Age, sex, BMI of either donor or recipient did not correlated with SGF. In this SGF group we don’t found a association with serum calcium, serum phosphate calcium / phosphate product and PTH. P < 0.6, P < 0.5, P < 0.8, P < 0.1 respectively. The use of calcium channel blocker before Transplantation in two groups was not significant. Our Short-Term experience don’t showed that serum calcium level were associated with SGF. The Pretransplant use of calcium channel blockers has not a protective effect on the occurrence of SGF. In order to clarify this issue was need Further Long-Term Study.