Arthur Sellings was the pseudonym of Arthur Gordon Ley, (31 May 1921, Tunbridge Wells, Kent, England – 24 September 1968, Worthing, Sussex, England) an English scientist, book and art dealer, and science fiction author.
In addition to Sellings he also wrote under the pen names Ray Luther and Martin Luther.
He is best known for his well-crafted portraits of adaptability under stress, in stories noted for their humor, suspense and attention to plot and character.
His posthumous novel Junk Day is considered his best work.