Singularity Sky is a science fiction novel by British writer Charles Stross, published in 2003. It was nominated for the Hugo Award for Best Novel in 2004. A sequel, Iron Sunrise, was published that same year. Together the two are referred to as the Eschaton novels, after a near-godlike intelligence that exists in both.

Charles David George "Charlie" Stross is a British writer of science fiction and fantasy. Stross specialises in hard science fiction and space opera. Between 1994 and 2004, he was also an active writer for the magazine Computer Shopper and was responsible for its monthly Linux column. He stopped writing for the magazine to devote more time to novels. However, he continues to publish freelance articles on the Internet.