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 built about 1740 by William Fenney who established Catcliffe Glassworks. Fenney had previously been the manager of the glassworks at Bolsterstone 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 10 miles (16 km) of the works at Bolsterstone and Catcliffe is 10.5 miles (16.9 km) away but also because of the good availability of raw materials locally. 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 during 1962 however common sense prevailed and in 1968 the cone received Grade I listing.