Arthur Davies (September 26, 1862 – October 24, 1928) was an avant-garde American artist and influential advocate of modern art in the United States c. 1910–1928.

Davies was born in Utica, New York, the son of David and Phoebe Davies. He was keenly interested in drawing when he was young and, at fifteen, attended a large touring exhibition in his hometown of American landscape art, featuring works by George Inness and members of the Hudson River School. The show had a profound effect on him. He was especially impressed by Inness’s tonalist landscapes. After his family relocated to Chicago, Davies studied at the Chicago Academy of Design from 1879 to 1882 and briefly attended the Art Institute of Chicago, before moving to New York City, where he studied at the Art Students League. He worked as a magazine illustrator before devoting himself to painting.

In 1892, Davies married Virginia Meriwether, one of New York State’s first female physicians. Her family, suspecting that their daughter might end by being the sole breadwinner of the family if she was to marry an impoverished artist, insisted that the bridegroom sign a prenuptial agreement, renouncing any claim on his wife’s money in the event of divorce. (Davies would eventually become very wealthy through the sale of his paintings, though his prospects at thirty did not look encouraging.) Appearances notwithstanding, they were anything but a conventional couple, even aside from the fact that Davies was of a philandering nature. Virginia had eloped when she was young and had murdered her husband on her honeymoon when she discovered that he was an abusive drug addict and compulsive gambler, a fact that she and her family kept from Davies.

An urbane man with a formal demeanor, Arthur B. Davies was “famously diffident and retiring”. He would rarely invite anyone to his studio and, later in life, would go out of his way to avoid old friends and acquaintances. The reason for Davies’ reticence became known after his sudden death while vacationing in Italy in 1928: he had two wives (one legal, one common-law) and children by each of them, a secret kept from Virginia for twenty-five years. With Virginia, he had two sons, Niles and Arthur.

Within a year of his marriage, Davies’ paintings began to sell, slowly but steadily. In turn-of-the-century America, he found a market for his gentle, expertly painted evocations of a fantasy world. Regular trips to Europe, where he immersed himself in Dutch art and came to love the work of Corot and Millet, helped him to hone his color sense and refine his brushwork. By the time he was in his forties, Davies had definitively proved his in-laws wrong and, represented by a prestigious Manhattan art dealer, William Macbeth, was making a comfortable living. His reputation at the time, and still today (to the extent that he is known at all), rests on his ethereal figure paintings, the most famous of which is Unicorns: Legend, Sea Calm (1906) in the collection of the Metropolitan Museum of Art. In the 1920s, his works commanded very high prices and he was recognized as one of the most respected and financially successful American painters. He was prolific, consistent, and highly skilled. Art history texts routinely cited him as one of America’s greatest artists. Important collectors like Duncan Phillips were eager to buy his latest drawings, watercolors, and oil paintings.

Davies was also the principal organizer of the legendary 1913 Armory Show and a member of The Eight, a group of painters who in 1908 mounted a protest against the restrictive exhibition practices of the powerful, conservative National Academy of Design. Five members of the Eight—Robert Henri (1865–1929), George Luks (1867–1933), William Glackens, (1870–1938), John Sloan, (1871–1951), and Everett Shinn (1876–1953)—were Ashcan realists, while Davies, Maurice Prendergast (1859–1924), and Ernest Lawson (1873–1939) painted in a different, less realistic style. His friend Alfred Stieglitz, patron to many modern artists, regarded Davies as more broadly knowledgeable about contemporary art than anyone he knew. Davies also served as an advisor to many wealthy New Yorkers who wanted guidance about making purchases for their art collections. Two of those collectors were Lizzie P. Bliss and Abby Aldrich Rockefeller, two of the founders of the Museum of Modern Art, whose Davies-guided collections eventually became a core part of that museum.

Davies was quietly but remarkably generous in his support of fellow artists. He was a mentor to the gifted but deeply troubled sculptor John Flannagan, whom he rescued from dire poverty and near-starvation. He helped finance Marsden Hartley’s 1912 trip to Europe, which resulted in a major phase of Hartley’s career. He recommended to his own dealer financially strapped artists whose talent he believed in, like Rockwell Kent.