The Catcliffe Glass Cone is a glass cone in the village of Catcliffe in South Yorkshire, England. It is the oldest surviving structure of its type in Western Europe, and it is a Grade I listed building and Scheduled Ancient Monument.
It was part of the Catcliffe glassworks, which was established in 1740 by William Fenney. Fenney had previously been the manager of the glassworks at Bolsterstone that was owned by his mother-in-law. The site at Catcliffe was chosen in part because the terms of her will prevented him from setting up a glassworks within Шаблон:Convert of the works at Bolsterstone and Catcliffe is Шаблон:Convert away. The glassworks closed c1887, but was reopened briefly in 1900, then in the First World War the site was used as a prisoner of war camp.
The cone was threatened with demolition in the 1960s so the foundations of the other buildings that comprised the glassworks were excavated in 1962. In 1968 the cone received Grade I listing.