The Sorrows of Satan is a Faustian novel published in 1895 and written by Marie Corelli. The book is considered one of the world’s earliest bestsellers, owing both to its popularity among readers and to changes in the British library acquisition system. Despite harsh criticism for its moralizing tone, the novel attracted influential supporters, including Oscar Wilde and members of the aristocracy. Long ignored by the literary establishment, it is now increasingly regarded as a significant text of the fin de siècle era. It is sometimes published under the subtitle Or the Strange Experience of One Geoffrey Tempest, Millionaire.