The Nine Tailors is a 1934 mystery novel by the British writer Dorothy L. Sayers, her ninth featuring Lord Peter Wimsey. The story is set in the Lincolnshire Fens, and revolves around a group of bell-ringers at the local parish church. The book has been described as Sayers’ finest literary achievement, although not all critics were convinced by the mode of death, nor by the amount of technical campanology detail included.

Sayers is best known for her mysteries, a series of novels and short stories set between the First and Second World Wars that feature English aristocrat and amateur sleuth Lord Peter Wimsey. As a crime writer during the “Golden Age of Detective Fiction”, Sayers was considered one of its four “Queens of Crime”, alongside Agatha Christie, Margery Allingham and Ngaio Marsh.