The Green Round is a horror novel by Welsh author Arthur Machen, his last full-length novel, were a man is haunted by a dwarf after visiting the "green round" on a beach.

According to the Friends of Arthur Machen website, "Machen's final full-length work of fiction is judged a failure by some. However, in this work, Machen's earlier exploration of the fantastic moves outward to embrace the absurd, of Kafka, Camus and Sartre. Not recommended for devotees of gothic and horror, but of potential fascination for the rest of us."

The Green Round was originally published in 1933. The first U.S. edition was published by Arkham House in 1968 in an edition of 2,058 copies. It was the only book by Machen to be published by Arkham House. E-Book: ePUB, length 38,200 words, average reading time 3 hours, 10 min. Unabridged full version.

Arthur Machen (1863-1947) 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.