Lesley Nneka Arimah (born 13 October 1983 in London, United Kingdom) is a Nigerian writer. She has been described as "a skillful storyteller who can render entire relationships with just a few lines of dialogue" and "a new voice with certain staying power." She is the winner of the 2015 Commonwealth Short Story Prize for Africa, the 2017 O. Henry Prize, the 2017 Kirkus Prize, and the 2019 Caine Prize for African Writing.