Ruth Ware, born Ruth Warburton in 1977, is a British author known for her psychological thrillers. Her notable works include In a Dark, Dark Wood (2015), The Woman in Cabin 10 (2016), The Lying Game (2017), The Death of Mrs Westaway (2018), The Turn of the Key (2019), One By One (2020), The It Girl (2022), and Zero Days (2023). Both In a Dark, Dark Wood and The Woman in Cabin 10 were listed as top ten bestsellers by the UK's Sunday Times and The New York Times. She is represented by Eve White of the Eve White Literary Agency. Ware adopted her pen name to separate her crime novels from her young-adult fantasy novels published under her birth name.

Background: Ware grew up in Sussex, England, and studied at Manchester University. She later moved to Paris before settling in North London. Her previous occupations include working as a waitress, bookseller, English teacher, and press officer. She is married and has two children.