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Leather industry has significant economic influence; however, it suffers from the negative impact due to environmental pollution caused by tannery wastes produced during leather processing processes. Processing industries are causing much damage to the environment. Leather processing is one such industry which takes skins from meat industry and processed to produce leather through tanning process. It gained negative impact in society because of its pollution. The growing awareness of the human and environmental vulnerability, to the pollution resulting from industrial activity, highlights the urgent need for control and mitigate the degradation of the world as we know it. The leather industry, considered as one of the industries with a significant environmental impact, applies several chemicals, some of them considered as hazardous chemicals, such as chromium, in leather production. Leather industry also emits obnoxious smell due to protein degradation of the skin and results in generation of toxic gases such as ammonia, H2S, etc. Even though the recovery of animal skin discarded by the meat industry may refer to the concept of a circular economy, the pollutants used in the leather tanning process have a profound effect on the environment. The present review provides an overview of the leather industry and its significant pollution impact in the environment.