Sartor Resartus: The Life and Opinions of Herr Teufelsdröckh in Three Books is an 1831 novel by the Scottish essayist, historian and philosopher Thomas Carlyle, first published as a serial in Fraser's Magazine in November 1833 – August 1834. The novel purports to be a commentary on the thought and early life of a German philosopher called Diogenes Teufelsdröckh, author of a tome entitled Clothes: Their Origin and Influence. Teufelsdröckh's Transcendentalist musings are mulled over by a sceptical English Reviewer who also provides fragmentary biographical material on the philosopher. The work is, in part, a parody of Hegel, and of German Idealism more generally.

Thomas Carlyle was a Scottish essayist, historian, and philosopher from the Scottish Lowlands. A leading writer of the Victorian era, he exerted a profound influence on 19th-century art, literature, and philosophy.