George Oliver Onions (13 November 1873 – 9 April 1961) was a significant English novelist who published over forty novels and story collections. Originally trained as a commercial artist, he worked as a designer of posters and books, and as a magazine illustrator, before starting his career in writing. The first editions of his novels were published with dust jackets bearing full-colour illustrations painted by Onions himself. He married the writer Berta Ruck in 1909 and they had two sons, Arthur (born 1912) and William (born 1913). Onions legally changed his name to George Oliver in 1918, but continued to publish under the name Oliver Onions.
Besides detective fiction, social comedy, historical fiction and a science fiction novel, New Moon (1918), Onions wrote several collections of ghost stories, of which the best known is Widdershins (1911). It includes the novella The Beckoning Fair One, widely regarded as one of the best in the genre of horror fiction, especially psychological horror.