Background: Nephrotoxicity is considered one of the most serious and dose-limiting factors for restricting clinical use of Cisplatin and anticancer efficacy. Gallic acid is a non-toxic substance that has a wide range of therapeutic roles with high antioxidant activity. So, the present study aims to investigate the concurrent protective action of Gallic acid against inflammatory and oxidative damage caused by Cisplatin in rat kidneys. Material and methods: Thirty-two male albino rats were classified into four groups, eight per each as follows: Group 1 (Normal Control group): without treatment. Group 2 (Gallic acid group): healthy rats were given Gallic acid. Group 3 (Cisplatin group): healthy rats were injected with cisplatin. Group 4 (Gallic acid + Cisplatin) treated group. Kidney functions, Paraoxonase-1, and inflammatory cytokines such as Tumor Necrosis Factor α, respectively were determined. Results: Cisplatin was induced kidney damage with a high significance (P <0.001) regarding kidney function tests and the group of Cisplatin + Gallic acid demonstrated a broad range in the prevention and/or management of kidney damage with a high significance (P <0.001) compared to cisplatin group. Conclusion: Gallic acid has a protective role against kidney dysfunction and renal damage in Cisplatin therapy.