This study was undertaken to investigate the effects of incorporating garlic (Allium sativum) powder, as agrowth promoter in broiler feed on growth performance, carcass characteristics and blood profile. Sixty threeone day-old commercial broiler chicks (Cobb) were reared in an open sided poultry house and divided into threegroups of 21 birds each. The groups were assigned to three diets containing (0, 3 and 5%) garlic powder. Feedand water were offered ad libitum till the termination of the trial after 42 days. Growth performance parametersand blood parameters were measured. Diet with 3% level of garlic significantly (P 0.05)between the various treatments. The highest breast weight was attained by feeding 3% of garlic (250g) and thelowest weight was attained when feeding 5% level (155g). No significant difference (P>0.05) in both bursa andthymus weights between the different treatments. Spleen weight decreased significantly (P0.05) on total red blood cells, packed cells volume, total white blood cellsand the differential count of white blood cells including neutrophile, eosinophile, monocytes and lymphocytes.It is concluded that the incorporation of garlic as feed additive at 3% level significantly enhanced growth andperformance of broiler chicks without any side effects as detected by blood profile