Capstan is a brand of unfiltered British cigarettes made by Imperial Tobacco and originally launched by W. D. & H. O. Wills in 1894. The brand became less popular when the health effects of tobacco became more widely known; few shops now sell them.

In 1971 the UK government published a table of the tar and nicotine contents of cigarettes available in the UK market, and Capstan Full Strength contained, by some margin, the highest tar and nicotine contents of any brand.