This list of the tallest chimneys in the world ranks chimneys by height.

Use

Although many kinds of industrial facilities have tall chimneys, most of the chimneys with heights of 200 m or more are part of thermal, especially coal-fired power stations. This is to increase the stack effect and disperse pollutants. Only a few smelters, steel mills, chemical factories and oil refineries use such tall chimneys.

Timeline of world's tallest chimney

Since the beginning of the Industrial Revolution, tall chimneys were built, at the beginning with bricks, and later also of concrete or steel. Although chimneys never held the absolute height record, they are among the tallest free-standing architectural structures and often hold national records (as tallest free-standing or as overall tallest structures of a country). Hamon Custodis claims to have built a 707 ft stack in 1953, but there are no references to the location or client of this/these stack(s). Skyscraperpage indicates the 846 ft chimney of Omskaya Cogeneration Plant #4 was built in 1965, but it is likely that this date is referring to the construction of the first section of the plant with the smaller chimney. No other references or information can be found to corroborate this claim.

Current

Indicates a structure that is no longer standing. Japanese Steel Smokestacks This is a list of Japanese smokestacks built from large sections of steel pipe. The majority of tall steel chimneys in the world are located in Japan. Unlike other modern developed countries which use reinforced concrete to build tall chimneys, Japan has historically used steel until recently in smokestack construction.