Arthur Machen ( March 1863 – 15 December 1947) was a Welsh author and mystic of the 1890s and early 20th century.
He is best known for his influential supernatural, fantasy, and horror fiction.
His novella "The Great God Pan" (1890; 1894) has garnered a reputation as a classic of horror (Stephen King has called it "Maybe the best [horror story] in the English language").
He is also well known for his leading role in creating the legend of the Angels of Mons.