Man is born with noise and dies with that, thus noise is part of human life and a natural product of human environment. Noise like smog, is a slow agent of death. Noise may not appear as a threat to global environment on the same level as deforestation, hazardous wastes or emission of poisonous gases into the atmosphere but if it continued the next 30 years as it has for the last 30 years, it could become lethal. Against this background, this paper examines noise as a factor harmful to the environment with focus on Nigeria. The paper looks at noise pollution in Nigeria and the legal regime relating to the problem. The paper examines how environmental law and other relevant sources of law endeavoured to tackle noise pollution in the country.