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This study aimed to investigate the protective effect of Arctium lappa (AL) on gentamicin (GM)-induced nephrotoxicity in rats. Twenty-four Wistar rats were divided into four groups including: control group; GM group (intrapritoneal injection, IP, of 100 mg/kg GM B.W.); GM+AL group (received IP injection of 100 mg/kg GM and 500 mg/kg AL orally) and AL group (received 500 mg/kg AL orally). The experimental period lasted for 10 days. Nephrotoxicity was biochemically and histologically evaluated. The concentrations of creatinine, urea, malondialdehyde (MDA), superoxide dismutase (SOD) and peroxide hydrogen (H₂O₂) in the serum samples were determined. Moreover, histological examinations were performed. The animals treated with gentamicin showed significantly higher serum urea, creatinine, MDA and H₂O₂ levels and lower SOD activity. However, co-administration of AL produced amelioration in biochemical indices of nephrotoxicity in serum. Histomorphological examination showed necrosis and desquamation of tubular epithelial cells in the renal cortex in animals treated with gentamicin whereas simultaneous administration of AL and GM reduced histological damages. The data obtained suggest that treatment with AL extract can help to reduce gentamicin-induced nephrotoxicity.