Ann Leckie (born 2 March 1966) is an American author of science fiction and fantasy. Her 2013 debut novel Ancillary Justice, in part about artificial consciousness and gender-blindness, won the 2014 Hugo Award for "Best Novel", as well as the Nebula Award, the Arthur C. Clarke Award, and the BSFA Award. The sequels, Ancillary Sword and Ancillary Mercy, each won the Locus Award and were nominated for the Nebula Award. Provenance, published in 2017, is also set in the Imperial Radch universe. Leckie's first fantasy novel, The Raven Tower, was published in February 2019.