Katie Daysh is an author of historical fiction. Her books explore the voices of queer characters in spaces where they are often underrepresented. The sea is a central theme in her stories. She is the author of the Nightingale/Courtney queer naval adventure series: Leeward, longlisted for the HWA Debut Awards 2024, The Devil to Pay, overall winner of the Isle of Wight Book Awards 2025, and A Merciful Sea, named as part of The Times' Best Historical Fiction 2025.